Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Home Additions & ADU Across Reno
If you’re reading this, you’ve likely already discovered that Reno’s construction market doesn’t move at a normal pace. The Tesla Gigafactory effect that started in 2016 turned this city into one of the fastest-growing building markets in the Mountain West, and every trade has been running at capacity ever since. That means homeowners who want a room addition or an ADU in Reno are getting told “six months out” or “we’ll put you on the list” by half the contractors they call. We don’t work that way. Barrett & Sons Construction is the owner-operated, name-on-the-truck option for Home Additions & ADU work across Reno, and when you call (877) 610-1318, a live person answers. Not a voicemail box. Not an out-of-state call center. Tom Barrett’s name is on the door, and his sons run the crews.
Why Barrett & Sons Construction Is Reno’s Preferred Home Additions & ADU Company
Reno homeowners between 50 and 70 have been burned before. A national outfit quotes one number on the phone, then hands over a different invoice at the door. That’s the exact problem Tom Barrett built this company to solve back in 1998, and it’s why we publish our license number, our address, and Tom’s name where anyone can verify them. We’ve spent 29 years operating the same way: every scope in writing, every allowance in writing, every price change delivered as a written change order before a single nail moves. Our Reno customers tell us the same thing after jobs finish: the bill matched the quote, the crew showed up when they said they would, and the permit inspector signed off without drama. The permit inspector works for you, not for me. That’s why I like him.
We’re not a franchise dispatching strangers to your neighborhood. Tom Barrett and his sons are on-site most days. If you live in Midtown, Old Southwest, or anywhere in the 89503 or 89509 zip codes, you’ve probably seen our trucks around. That matters when you’re spending $45,000 or more on a home addition. You want the person who signed the contract to be the person walking the job. That’s how we’ve always done it in Reno.
Our Home Additions & ADU Services in Reno
Every project starts with a written scope. No handshake deals, no “we’ll figure it out later.” Here’s what we handle across Reno:
ADU Design & Permitting
A detached ADU in Reno means navigating Nevada’s Wildland-Urban Interface fire codes if you’re in the North Valleys, Lemmon Valley, or the eastern foothills, plus the city’s standard residential permit path if you’re not. We pull permits on every eligible job and manage the design work so the plans actually pass review the first time. An ADU in Reno typically runs $90,000 to $220,000, and we walk you through every allowance and change order before it happens.
Garage Conversion ADU
Many of the post-WWII ranch homes in Midtown and Old Southwest have detached garages that are perfect candidates for conversion, but the unreinforced masonry on those older structures often needs seismic retrofitting before walls can move. That’s not a surprise we spring on you mid-job. We identify it during the estimate and put it in writing up front. Garage conversions in Reno usually land between $30,000 and $80,000 depending on whether you’re adding a kitchenette, a full bath, or just finishing the shell.
New Detached ADU
Reno’s 4,500-foot elevation changes how we build. Hard frost lines run deeper here than in Las Vegas, and parts of the metro sit in 40-psf roof snow-load zones. That means foundation depths, insulation details, and roof framing all get specified for genuine freeze-thaw cycles, not desert shortcuts. The same elevation brings roughly 300 sunny days a year, so we also detail for baked-dry summers. New detached ADUs in Reno run $90,000 to $220,000, and every line item is in writing before we break ground.
Junior ADU & Interior Conversion
If you have an underused den, basement, or oversized utility room, a junior ADU can add rental income or a place for aging parents without the full cost of a detached build. In Reno’s older core neighborhoods around the University, we regularly convert existing interior space into studio ADUs with separate entrances. These projects start around $45,000 and go up from there depending on plumbing and electrical scope. Everything gets a written change order. Nothing happens on a handshake.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Reno
We carry premium-brand materials across every trade we touch, because an allowance that isn’t on paper is a surprise waiting for a date. For Reno exterior work on ADUs and sunrooms, we spec Techo-Bloc and Cambridge Pavers for hardscape steps, walkways, and patio tie-ins. Oldcastle and Quikrete products show up on foundations, site prep, and retaining details. These are materials you can look up and verify, not mystery brands off a van. When you’re investing $50,000 to $130,000 in a room addition, you should know exactly what’s going into the walls and under the slab.
Common Home Additions & ADU Problems We See in Reno Homes
- Freeze-thaw cracking in new stucco. The North Valleys and Spanish Springs corridor are filling with 2000s-era wood-frame stucco homes whose exteriors are already showing UV and freeze-thaw cracking faster than their builders anticipated. When we tie a room addition into one of these homes, we match the existing finish and detail the transition so the new work doesn’t telegraph the seam.
- Wildland-Urban Interface fire code surprises. If your property sits in Lemmon Valley or the eastern foothills, any new residential permit triggers mandatory Class A roofing, ember-resistant soffit vents, and ignition-resistant siding. That’s a requirement that doesn’t appear on permits two miles away in central Reno, and we flag it during the estimate, not at the permit counter.
- Undersized electrical panels on older homes. Midtown and Old Southwest ranch homes built in the 1950s and 60s often carry original 100-amp panels. Adding a junior ADU or a full second story can require a service upgrade, which we include in the written scope from the start.
- Foundation settling from Sierra freeze-thaw. Reno’s 20 to 30 hard-freeze nights each winter put genuine stress on slabs and footings, especially on clay-heavy lots in the 89506 corridor. We inspect before we build, and if remediation is needed, it’s in the change order before it’s in the invoice.
Pricing for Home Additions & ADU in Reno, NV
A home addition in Reno typically runs $45,000 to $130,000. A detached ADU lands between $90,000 and $220,000. A garage conversion usually falls between $30,000 and $80,000. Sunrooms and enclosed patios start around $45,000 and climb based on glazing, foundation work, and whether you’re adding heat. What moves the number most: foundation depth driven by frost lines, seismic retrofitting on older masonry homes, Wildland-Urban Interface fire requirements on the northern and eastern edges of the metro, and finish-level choices like kitchenettes or full baths. The estimate is free, it’s written, and it won’t change unless you change it. Call (877) 610-1318 and we’ll walk your property in Reno and put real numbers on paper. No trip charge inside the county, and a permanent 10% Senior & Veteran discount applies.
We Also Serve Cities Near Reno
Crews coordinated from our Las Vegas office serve Reno locally, and we run jobs in Reno and the surrounding communities every week. If you’re in Sun Valley, Sparks, Lemmon Valley, or Spanish Springs, the same written-scope process applies. Same permits pulled, same inspections signed, same 90-Day Done Right Promise. And if your addition scope includes reworking the kitchen, our Kitchen Remodeling in Reno team handles that under the same contract. If the project touches a full bath or a half-bath off the new space, we also handle Bathroom Remodeling in Reno without bringing in a second contractor.
Serving Reno, NV - Our Local Coverage Area
We’re based in the Reno area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Home Additions & ADU in Reno
We schedule estimates within days of your call, and most Reno projects start within a few weeks of a signed contract. We’re not the contractor who puts you on a six-month waitlist and stops answering the phone. Call (877) 610-1318 and a live person answers 24/7, even at 9pm on a Tuesday.
Yes. We work in 89504, 89505, 89506, and 89507, plus the surrounding metro. That includes Midtown, Old Southwest, the North Valleys, Spanish Springs, and everything in between. No trip charge inside the county.
We’re not an emergency board-up crew, but we do respond fast when a job in Reno hits weather-related trouble mid-build. If a Sierra storm rolls in before your roof is dried in, Tom gets the call and crews respond. The 90-Day Done Right Promise means one call brings us back, no argument.
Reno’s prices run slightly higher than Sparks because of the Wildland-Urban Interface fire code requirements on the expanding northern and eastern edges, plus deeper frost-line foundation work than lower-elevation Nevada markets. A home addition in Reno runs $45,000 to $130,000. That’s the honest range. Call (877) 610-1318 for an exact quote on your lot. Estimates are free.
Every job comes with the written 90-Day Done Right Promise. If it’s not done right, Tom comes back and makes it right, one call. He lives twenty minutes away; if something’s wrong, he wants to know about it. No fine print, no third-party warranty company. It’s on the contract.
Written by Tom Barrett, Owner at Barrett & Sons Construction. Call (877) 610-1318 for a free estimate on your Home Additions & ADU project anywhere in Reno.