A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Moreno Valley, CA
Fielding ADU Builders handles accessory dwelling units, garage conversions, and room additions in Moreno Valley, CA. Most of the homes here were built between the 1980s and early 2000s, which means slab foundations, stucco exteriors, and lot sizes that actually work in your favor when you want to add square footage. The city’s permitting process is predictable once you understand the ADU ordinance, and we do. Call (361) 315-4177 for a written estimate before any work starts.
Why Moreno Valley Homes Are Different
Moreno Valley sits in a high-desert climate zone. Summer temperatures regularly push past 100 degrees, and the sun beats on south-facing walls from June through October. That changes how we insulate, where we place windows, and what kind of HVAC we size for a new ADU or room addition. A detached unit here needs more than the minimum Title 24 insulation if you want it livable in August without running the AC around the clock.
The housing stock is mostly single-story ranches on 7,200 to 10,000 square foot lots. That gives you room to build, but it also means setbacks matter. Many Moreno Valley lots have enough side and rear yard to fit a detached ADU without a variance, but some of the older homes near Alessandro Boulevard and the areas west of the 215 sit on irregular parcels. We check setback requirements on every job before we put a price in writing. If you need a setback variance (the city’s written permission to build closer to the property line than the standard rule allows), we handle that paperwork as part of the permit package.
Wind is another factor people forget until the framing goes up. The Santa Ana winds hit Moreno Valley hard in the fall, and a poorly braced structure will let you know. We over-engineer shear walls and roof ties on every build here, not because the code requires it on paper, but because the local conditions demand it in practice.
Our Main Moreno Valley Services
Most Moreno Valley homeowners call us about one of three things: a new ADU in the backyard, a garage conversion, or a room addition on the existing home. Each has its own dedicated page below with pricing and details.
Room Addition Contractor in Moreno Valley
A room addition in Moreno Valley usually means extending the back or side of a ranch-style home. We match the existing roofline and stucco texture so the addition reads as original construction, not a bolt-on. The biggest local variables are the soil condition on your lot and whether your existing foundation can carry the added load without upgrade work. We can often use a standard concrete slab with deeper footings, which keeps costs predictable. See full pricing and process details on our Room Addition Contractor in Moreno Valley page.
Garage Conversion Contractor in Moreno Valley
A garage conversion turns existing square footage into living space, which is usually the most cost-effective way to add a bedroom, rental unit, or home office in Moreno Valley. The catch is that California requires the conversion to meet current energy and egress codes, which often means new windows, upgraded electrical, and a mini-split HVAC system. Our crews handle the full permit path and the inspection sign-off. We also work with James Hardie siding when the exterior needs to look finished rather than like a closed-up garage. Get specifics on our Garage Conversion Contractor in Moreno Valley page.
ADU Builders in Moreno Valley
A detached ADU in Moreno Valley typically runs 400 to 1,200 square feet, and the city’s ADU ordinance allows units on most residential lots zoned R1. We build both conventional stick-frame ADUs and prefab units through Abodu, Cover, and Dvele, which can cut months off the build timeline. The tradeoff is that prefab requires crane access and a level build site, so we survey every lot before recommending a method. Pricing, timelines, and what the Garrett Standard guarantee covers are on our ADU Builders in Moreno Valley page.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Moreno Valley
We install and service ADUs built with James Hardie siding, and we work regularly with Abodu and Cover prefab units. Parts and materials are sourced through our Inland Empire suppliers, so lead times stay short and we are not waiting on backordered siding or panels. See our brands for details on what we work with and why.
Pricing for ADU Company in Moreno Valley, CA
| Service | Typical range in Moreno Valley |
|---|---|
| Detached ADU (400-749 sq ft) | $180,000 – $280,000 |
| Detached ADU (750-1,200 sq ft) | $260,000 – $390,000 |
| Garage conversion (standard, permitted) | $85,000 – $140,000 |
| Garage conversion with bath and kitchen | $120,000 – $175,000 |
| Room addition (200-400 sq ft) | $65,000 – $120,000 |
| Room addition (400-800 sq ft) | $110,000 – $190,000 |
| Primary suite addition | $130,000 – $220,000 |
| Prefab ADU (all-inclusive, mid-spec) | $170,000 – $300,000 |
Those numbers shift in Moreno Valley based on site prep, utility trenching distance, and whether your lot needs a setback variance or soil correction. The number we put in writing before any work starts is the number on the final invoice. No change orders, no door-price surprises.
Neighborhoods We Serve in Moreno Valley
Our crews work throughout Moreno Valley, and we schedule jobs so we are on site within a few days of your estimate, not weeks. We know the streets, the soil, and the common issues in each pocket of the city.
- Hidden Springs
- Sunnymead Ranch
- Lake Perris area
- Rancho Belago
- Moreno Valley Ranch
Service Area – Cities Near Moreno Valley
While this page covers Moreno Valley specifically, our ADU and addition crews also serve Perris, CA, Nuevo, CA, Colton, CA, and Riverside, CA. Scheduling and dispatch run through our Inland Empire office, and every crew on the road is background-checked and uniformed.
Serving Moreno Valley, CA - Our Local Coverage Area
We’re based in the Moreno Valley 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 About ADU Company in Moreno Valley
We typically have a crew available within a few days of your written estimate, and we set a firm start date in the contract. The live-person line at (361) 315-4177 is answered 24/7, so you’ll know exactly when we’re coming before you hang up.
We handle city permits and building inspections as part of every job. If your Moreno Valley home sits in an HOA, we can review their architectural guidelines and flag any known restrictions before you commit. The Garrison Standard means the work is done by the book, including the permit card posted on site.
You receive a written, line-item price before any work starts. That is the number you approve, and that is the number on the final invoice. If we uncover something unexpected during the build, we talk to you first. Call (361) 315-4177 to schedule a free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Moreno Valley Customers Say
"Built a detached ADU behind our house. The builder is a veteran and runs the site like a platoon: schedule posted, crew on time, everything labeled. Finished within a few days of the date."
- Ken W."Room addition over the back patio. Framing is square, windows are tight, and the roofline matches."
- Danny L."Foundation and slab poured on schedule. Crew kept the yard orderly."
- Marian J.
