6590 E 49th Ave
Serving Denver Metro
39.78°N · 104.91°W
RVIA / RVTI · Master Certified

Happy
Campers,
on purpose.

House-systems shop serving Denver Metro. Family-owned. Fast in, fast out — with a clear plan before a single wrench turns.

47+ yrs combined
4.9★ · 75+ reviews
Victron-certified
Booked inside 7 days
The Shop 6590 E 49th Ave · Denver Metro
Out there Camper vans & trailers — Colorado base camp
Airstream Sprinter Class B · C Travel Trailer Fifth Wheel Victron Solar Lithium Roof & Seal Winterization Airstream Sprinter Class B · C Travel Trailer Fifth Wheel Victron Solar Lithium Roof & Seal Winterization
47+
Years combined
bench experience
7 days
Typical booking
window
4.9
75+ reviews,
consistently 5-star
100%
Satisfaction
on every job
02 · What we do

House systems,
dialed in.

We focus on the systems that make your rig livable. No engines, no chassis, no drivetrain — just expert RV repair for electrical, plumbing, HVAC, roof, solar, and appliances. Specialization is how we turn jobs in days, not months.

01 · RV electrical

Electrical & Power Systems

12V and 110V diagnostics and repair. Converters, inverters, transfer switches, shore-power shorts, slide-out wiring, generator controls, and full lithium conversions. We troubleshoot before we replace — honest diagnosis, clean wiring, no mystery parts.

  • Converter & inverter repair
  • Shore-power diagnostics
  • Lithium conversions
  • 12V / 110V wiring
02 · Solar & off-grid

Solar & Lithium Power

Victron-certified installer. Victron is the brains of the system — MPPT charge controllers, MultiPlus inverter/chargers, and full system monitoring — paired with quality solar panels and lithium battery banks we size to your actual rig and actual habits. We're a Go Power (Dometic) and Rich Solar panel dealer and a Renogy, Epoch, and Rich Solar lithium battery dealer. Clean install, fully documented.

  • Victron installs
  • Go Power / Rich Solar panels
  • Renogy / Epoch / Rich Solar lithium
  • System monitoring
03 · Leak & plumbing

Leak & Plumbing Repairs

Fresh-water systems done right. Leak detection and repair before water damage spreads, water-heater repair or replacement (Atwood, Suburban, Truma), pump swaps, sanitization, fresh-tank service, pipe & fitting replacement, and full winterization and de-winterization. Your water system should be boring; we keep it that way. Leak & plumbing detail + DIY check guide →

  • Leak detection & repair
  • Water heater service
  • Water pump swaps
  • Winterize / de-winterize
04 · AC repair

RV A/C Repair & HVAC

A/C diagnostic, rooftop unit replacement, furnace repair, thermostat upgrades, and ducted-system cleaning. We're a direct dealer for Dometic, Coleman, and RecPro A/C units plus Suburban and Atwood furnaces. Colorado heat rises fast; your rooftop shouldn't quit on you. Repair costs & common causes →

  • Rooftop A/C repair
  • Furnace repair
  • Thermostat upgrades
  • Vent fan installs
05 · Roof maintenance

Roof Service & Replacement

Colorado UV, hail, and freeze-thaw are brutal. We inspect every seam, reseal with the correct material for your roof type (Dicor, AdSeal lap, self-leveling, butyl, Parbond), patch damage, and — when a roof is too far gone — perform full roof replacement. We add annual-inspection records so your warranty and insurance stay clean. Catch small issues before they turn into interior water damage. Roof & seal maintenance →

  • Seam reseal
  • Roof leak repair
  • Roof replacement
  • Annual roof inspection
06 · Vents & skylights

Vent & Skylight Upgrades

We service and reseal all skylights — and when it's time to upgrade, hail-resistant Maxim domes are our go-to. We also install MaxxAir or Fantastic Fan powered vents, add blackout shades, and reseal every penetration correctly the first time. Better airflow, less condensation, more natural light — and a roof that actually stays dry.

  • All skylight service
  • Maxim Skylight Upgrade
  • MaxxAir / Fantastic Fan
  • Vent reseal
  • Blackout shades
07 · Slides & awnings

Slide Systems & Awnings

Slide-out seals, motors, and gear adjustments when a slide stops working; awning fabric replacement, arm repair, and motor swaps so you stay shaded and protected from the sun. We service Lippert slide systems (including Schwintek), plus Carefree, Lippert Solera, ZIP-DEE, and Dometic awnings.

  • Slide-out seals
  • Slide motor & gear repair
  • Awning fabric replacement
  • Awning arm & motor repair
08 · Appliances

Appliances & Interior

Dual- and triple-power fridges, stovetops and cooktop conversions, microwaves, entry steps, leveling systems, and entertainment. We keep common parts in stock and diagnose before we replace.

  • Fridge repair
  • Stove & cooktop
  • Microwave install
  • Entertainment systems
09 · Annual maintenance

Annual Maintenance

The single best way to protect your investment. Reseal roof, test LP, flush water heater, sanitize fresh tank, repack bearings, and test every appliance. We build a yearly record for you — your insurance adjuster and your future buyer will thank you. Full RV maintenance & repair guide → How often to repack wheel bearings →

  • Roof reseal
  • Brake inspection
  • Winterization
  • Appliance testing
  • Bearing repack
10 · RV inspection

RV Inspection

Pre-trip, pre-purchase, pre-sale, or seasonal. We walk every house system: roof & vents, electrical 12V/110V, plumbing & tanks, A/C and furnace, brakes & bearings, appliances, slides and levelers. Written report with photos — know exactly what you own before you hit the road. See everything we check →

  • Pre-trip inspection
  • Pre-purchase inspection
  • Pre-sale inspection
  • Seasonal inspection
11 · Ceramic & detail

Ceramic Coating & Wax

A two-day process in our bay: a full decontamination wash and clay-bar, then a professional ceramic coat that rejects UV, hail, bug acid, and road salt for years. We also handle exterior wash, wax and detailing.

  • Ceramic coating
  • Decon wash & clay-bar
  • Exterior wash & wax
12 · Cleaning services

Deep Cleaning & Detail

Exterior wash, roof scrub, black-streak removal, interior deep clean, cabinet cleaning, and odor remediation. Get it back looking — and smelling — like day one. Perfect before a trip, before a sale, or just because it's been a long season.

  • Exterior wash
  • Interior deep clean
  • Cabinet cleaning
  • Odor remediation
13 · RV upgrades

RV Upgrades & Accessories

From off-grid power to connectivity, comfort, and safety — we're a dealer and certified installer for the brands that matter: Go-Power, Renogy, Epoch, Rich Solar, Victron, Truma, Furrion, Torklift, Starlink and more. Installed right, documented clean. See all RV upgrades →

  • Solar & lithium
  • Starlink & boosters
  • On demand water heaters
  • Leveling & lift kits
14 · Leveling & chassis

Leveling, Jacks & Steps

Auto-leveling systems (Lippert, HWH, Equalizer / EQ Systems), tongue jacks, entry steps, and stabilizer jacks. House-side only — we don't touch the engine, transmission, or drivetrain, but everything that makes it livable is fair game.

  • Auto-leveling systems
  • EQ Systems
  • Tongue jacks
  • Entry steps
  • Stabilizer jacks
15 · First-time owners

First-Time RV Guide

New to RV ownership? We'll walk you through every system — water, waste, power, propane, safety — so you roll out with confidence. Free new-owner orientation with any inspection or purchase service. The questions you don't know to ask, we answer before you leave. See the full owner guide →

  • Systems walk-through
  • Dump & fill training
  • Safety check
  • Owner Q&A session
+16Propane system inspection
+17Smoke & LP alarm service
+18Insurance claim coordination
+19Bearing repack & brake service
Scope of work

We're house-systems specialists. We work on RVs under 20 years old and 40 ft or less. No engines, no transmissions, no chassis drivetrain — specializing is how we keep turnaround fast and quality high. If you need chassis work, ask us — we'll refer you to a trusted partner.

Popular upgrades

Make your rig better.

Power & Off-Grid Freedom

  • Solar panels — Go Power (Dometic), Renogy & Rich Solar dealer
  • Lithium upgrades — Epoch, Renogy & Rich Solar dealer
  • Victron-certified off-grid systems
  • Inverter/charger upgrades — Victron & Xantrex
  • Soft-start A/C installs

Comfort & Convenience

  • On demand water heaters — Truma, Girard & Fogatti
  • Maxim skylights
  • Torklift steps & hitches
  • Appliances — Dometic, Lippert, Furrion, Truma, Fogatti, Nova Kool, Norcold

Connectivity & Technology

  • Starlink internet & cell signal boosters
  • Furrion backup camera systems

Safety & Protection

  • Leveling system upgrades
  • Airstream lift kits
  • LED lighting conversions
  • Keyless entry, smart locks & cameras
  • Ceramic coating & wax services
  • Bike racks & hitch adjustments
See all upgrades in detail Request an upgrade quote
Insurance claims welcome
Hail & body repair

Hail & Body Repair

We specialize in structural and cosmetic body repair for Airstreams and other metal-skinned travel trailers. From hail dents and panel distortion to collision damage and torn seams, we restore the integrity and appearance of your rig the right way — not with shortcuts.

We work with insurance companies regularly and document the process thoroughly so nothing gets missed.

Schedule an estimate
03 · Receipts

Drag the line.
See the work.

Ceramic coat on a travel trailer — before and after a two-day process in our bay. Guards the aluminum against UV and oxidation, adds deep gloss, and makes road grime rinse right off.

Before After · Ceramic
04 · Storage

Storage.
Concierge service.

Full concierge storage: we park your rig and pull it out for you, ready when you are. Need a full fresh-water tank before a trip? Just ask. One lot, one team, one monthly bill — priced per linear foot, honest and transparent.

Wait list

Indoor · Climate controlled

Conditioned interior, 24-hour monitored, power hookups, direct walk-to-shop service access. The way we'd store our own rig — because we do.

  • Climate controlled
  • We park & pull it out
  • Fresh tank filled on request
  • On-site service
$22 per linear ft
per month
Indoor is currently full. Join the wait list — we move fast.
Wait list

Outdoor · Secure lot

Fenced, graveled, monitored. Great for seasonal storage and for customers who just want a safe place close to I-70 when they're not rolling.

  • Fenced & monitored
  • We park & pull it out
  • Fresh tank filled on request
  • On-site service
$6 per linear ft
per month
Outdoor is currently full. Join the wait list — spots open seasonally.
Airstream specialists

We speak
Airstream.

Riveted aluminum needs a specialist. Our bay is set up for Airstreams — from Bambi to Classic and Interstate & Atlas Sprinter vans. We're a Colorado Airstream Club Rally training partner and we know every owner's quirk before you say a word.

  • Riveted-aluminum safe sealants & polish
  • Bambi · Caravel · Flying Cloud · Globetrotter · Classic
  • Interstate & Atlas Sprinter house-systems
  • Pottery Barn SE and limited-edition specialists
  • Colorado Airstream Club Rally training partner
Airstream in the Master Tech service bay
From the bay Pottery Barn Classic — in for service
05 · For sale on the lot

Customer
RVs for sale.

These are our customers' RVs that are for sale — serviced and stored right here. Come in and check them out, or call the shop and we'll tell you what just landed.

For sale 2008 Airstream International 16 Design Within Reach interior

2008 Airstream International 16' DWR

  • Design Within Reach Edition
  • 1 of only 89 built
  • ~3,600 lbs, tows w/ small SUV
  • Wrap windows, wet bath
$44,000 Ask at the counter
For sale 2006 Airstream Safari interior

2006 Airstream Safari 23NB

  • 23 ft
  • Front couch · rear bed
  • GVWR 5,600 lbs
  • 30-gal fresh
$25,000 OBO Ask at the counter
For sale 2017 Airstream Basecamp 16 interior

2017 Airstream Basecamp 16

  • 16 ft
  • Four-season
  • 2,585 lbs dry
  • 170W solar
  • Sleeps 6 / king
$25,500 OBO Ask at the counter
06 · Off-grid builder

Build your
power plant.

A rough-cut of what your rig needs. Pick your use case, move the sliders, and we'll spec a Victron-recommended config as a starting point. Final design happens on the bench.

Use case

Battery bank 6kWh
Solar array 600watts

Inverter

Victron config · draft

Weekender · Starter Kit

  • Batteries2× Smart Lithium 100Ah
  • MPPT ChargerSmartSolar 100/50
  • Inverter / ChargerMultiPlus 12/2000
  • MonitoringVictron GX monitor
  • Est. daily harvest~3.0 kWh
  • Runtime off-grid~2 days
Victron-certified install. Book a consult to confirm your roof area & rig's AC panel.
Request an estimate
Mark and Carol, owners of Master Tech RV, with their dog in the Colorado mountains
Mark & Carol · Owners
07 · The shop

Mark & Carol.
Owner-run.

We started Master Tech in 2019 because Denver needed a place RV owners could actually trust. Too many shops let rigs sit for months before anyone touched them. Too many dealers upsold and under-explained. We wanted a counterpoint.

So we built one. Indoor storage and a certified repair bay under one roof. We get customers in immediately, we turn jobs quickly, we tell the truth about what's broken and what isn't. A lot of our customers become friends. That's the whole business plan.

"Our service makes happy campers. That's the whole thing."

— Mark & Carol · Owners
08 · What customers say

4.9 stars,
75+ reviews.

Communication is clear, turnaround is fast, and we fix what we said we'd fix. Real reviews from Airstream and RV owners across the Denver metro.

4.9
75+ Google reviews · Master Tech RV Repair & Storage

"Got us in within the week, diagnosed a converter issue nobody else could find, and had the Airstream back to us before our Moab trip. Mark walked through every repair with photos. This is how it should be done."

Patricia R.
Airstream Flying Cloud · Denver · Google review

"Victron solar install on our Sprinter — 600W array, 200Ah lithium, full system monitoring. They explained every component, installed clean, documented everything. Boondocked two weeks in Utah without starting the generator."

Ted R.
Sprinter Interstate · Boulder · Google review

"After the last hail storm our roof needed help. They got us in the same week, resealed every seam, walked the roof with me after, and showed me what to watch for next winter. Storage next door is a bonus."

Brinn M.
Travel Trailer · Littleton · Google review
09 · Good questions

Answers,
straight up.

The questions we get most, answered the way we'd answer them at the counter. Still unsure? Call the shop — 303-557-2214.

What makes Master Tech different from other RV shops?
We're one of the only facilities in the Denver Metro Area that pairs expert repair with secure on-site storage. Beyond that, Mark and Carol are personally involved in every job — you're working with owners who have a stake in your satisfaction, not a corporate chain. And because we specialize exclusively in house systems, we stay faster and sharper than a full-service shop juggling engine work and sales.
What do you work on — and what don't you?
We handle the systems that make your RV livable: electrical, plumbing, HVAC, appliances, roof and seal, solar and lithium, slides and awnings. We work on most types — Class B and C motorhomes, travel trailers, fifth wheels and toy haulers — up to 40 feet and 20 years old. We deliberately don't touch engines, transmissions, or chassis drivetrain. If that's what you need, ask us and we'll point you to a trusted shop.
How long will my repair take?
It depends on the work. Simple issues are often same-day; bigger jobs take longer. Either way, we inspect thoroughly, give you a written estimate and a realistic timeline before we start, and keep you updated so there are no surprises. Our specialized focus means we usually turn repairs around faster than the dealerships — most appointments are booked inside 7 days.
What's your warranty policy?
Every repair we perform is backed by a 60-day warranty on both parts and labor — if something we fixed fails within that period, we make it right at no charge. We also stand behind our work with a 100% satisfaction guarantee. If you're not happy, call us right away; the sooner we know, the sooner we fix it.
Can you help with insurance claims?
Absolutely. We have extensive experience coordinating damage claims. We document everything with photos and detailed descriptions, provide a comprehensive estimate, work directly with your adjuster, and handle the paperwork so you don't have to. You focus on the road — we handle the insurance logistics. Call 303-557-2214 and we'll walk you through it.
How much does storage cost?
Storage is priced per linear foot, per month — indoor climate-controlled runs $22/ft and secure outdoor runs $6/ft. Both are full concierge: we park your rig and pull it out for you when you're ready to roll, and we'll fill the fresh-water tank on request. Both lots are currently full, so the best move is to join the wait list; we move fast and spots open seasonally.
How do I schedule an appointment?
Easiest: call 303-557-2214 (Mon–Fri, 9 AM – 6 PM) or fill out the service request below. Let us know your RV's year, make, model and length, and what you need — we'll confirm a drop-off window, usually within one business day. We operate by appointment only at 6590 E. 49th Ave., Commerce City.
10 · Airstream questions

Airstream owners,
this one's for you.

Riveted aluminum is its own discipline. Here's how we handle the structural, power, storage, and care questions Airstream owners ask us most. Don't see yours? Call 303-557-2214.

Repairs & structure
Do you repair Airstream travel trailers?
Yes — we specialize in it. Aluminum body repair, structural corrections, roof service, electrical, solar, and interior house systems. Airstream construction is nothing like a fiberglass RV; we understand how aluminum shells, rivets, and structural components work together, and how to repair them correctly.
Do you repair Front End Separation on Airstreams?
Yes. Front End Separation is a known issue on certain Airstream models — particularly those with front storage compartments. We properly correct the separation, reinforce the affected structure, and restore alignment and integrity to the front cap and frame connection. If you're noticing gaps, movement, separation at the front seam, or unusual flexing, have it inspected promptly — left unaddressed, it gets worse.
Why does Front End Separation occur?
It typically comes from stress, frame flex, weight distribution, or long-term structural fatigue. On models with front storage compartments, the added weight contributes to stress at the shell-to-frame connection. This is a structural issue, not cosmetic, and should be handled by a shop familiar with Airstream construction.
Do you repair hail damage and replace aluminum panels?
Yes to both. We repair hail and aluminum panel damage, and we can replace damaged aluminum sheets — restoring proper fit and finish while maintaining the integrity of the shell structure.
Do you service Airstream roofs?
Yes. We service and repair all Airstream roof types, including reseals and leak diagnostics. We do not do full roof replacements. Colorado's hail and UV make roof maintenance especially important.
Power & electrical
Do you install solar and lithium systems on Airstreams?
Yes — we're Victron-certified and install lithium battery and solar systems using trusted brands like Epoch, Renogy, Go Power, Rich Solar, and Merlin Solar. Airstream owners usually want dependable off-grid capability, so we design around how you actually camp — not a generic parts list.
Can you upgrade my inverter or power management system?
Absolutely. We install and configure Victron, Xantrex, Magnum, and WFCO inverter and power systems tailored to Airstream electrical layouts.
Do you install lift kits?
Yes — we install lift kits to improve ground clearance and towing performance when appropriate.
Eligibility & storage
Do you work on older Airstreams? Engines or generators?
We service Airstreams less than 20 years old. We specialize in house systems only — electrical, plumbing, HVAC, appliances, roofing, and structural shell work. We don't work on engines or generators.
Can I store my Airstream with you?
Yes. We offer secure, climate-controlled, temperature-regulated indoor storage, or uncovered outdoor storage — and no winterizing is required when stored indoors with us. We can also service your Airstream whether it's stored indoors or outdoors at our facility.
Maintenance
How often should I service my Airstream?
Routine maintenance is critical for long-term structural and mechanical health — especially with aluminum construction. We recommend: Every 10,000 miles
  • Inspect or replace brakes as needed
  • Inspect Nev-R-Lube bearings during tire rotation (per Dexter guidelines)
  • Inspect and rotate tires; check tire pressure
  • Lubricate spare tire carrier
  • Clean windows and door seals, treat with silicone
  • Lubricate escape window latches
  • Clean and protect battery terminals
Every 5,000 miles
  • Lubricate main door latch with dry graphite
  • Lubricate exterior door locks and hinges
  • Lubricate LPG hold-down
  • Torque wheel lug nuts (110 ft-lbs aluminum, 100 ft-lbs steel)
  • Inspect and lubricate breakaway switch
  • Clean 7-way plug
  • Lubricate and inspect main door step
Regular service prevents larger structural and braking issues down the road. See the full Airstream maintenance schedule →
Do you perform complete Airstream maintenance inspections?
Yes. Our comprehensive Airstream inspections cover structural checks, braking systems, roof integrity, seal inspections, electrical review, and safety component evaluation. Preventative maintenance is far less expensive than structural repair.
Ceramic coating
Do you offer ceramic coating for Airstreams?
Yes — professional ceramic coating applications formulated specifically for aluminum Airstream exteriors.
What are the benefits of ceramic coating an Airstream?
It delivers long-term protection that wax can't match:
  • Protection against UV, oxidation, acid rain, and contaminants
  • Easier cleaning from hydrophobic surface properties
  • Reduced fading and dulling of the aluminum
  • Resistance to minor scratches and swirl marks, plus chemical resistance
  • Enhanced gloss and improved resale value
For Colorado owners dealing with intense UV, it's a smart long-term investment.
Is ceramic coating better than waxing?
Yes. Traditional wax is short-term protection. Ceramic coatings bond to the surface for long-lasting durability, deeper gloss, and superior environmental resistance.
11 · Service request

Tell us
what broke.

We usually respond same-day. You can also just call — 303-557-2214. We operate by appointment only.

Fast & honest

Get on the
schedule.

Fill this out and we'll confirm a drop-off window by email or phone — usually within one business day.

  • Booked inside 7 days
  • 60-day warranty
Have photos of the issue?
Text them to 303-557-2214 and we will match them to your request.

Tweaks