A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Madera
A home addition in Madera typically runs $180 – $420 per square foot depending on finish level, site access, and what your existing foundation and electrical panel can handle. Most detached ADUs and garage conversions on the 6,000 – 10,000 sq ft lots around northwest Madera land in the $160,000 – $280,000 range, while attached room additions and bump-outs start closer to $95,000. Call (559) 354-0579 for a written, line-item price before any work starts.
We work across Madera every week, from the older in-town bungalows near the historic downtown grid to the 1970s – 2000s stucco ranches spreading out along Avenue 13 and Avenue 12. Lodgewick ADU Fresno is the Home Addition Contractor team that puts every commitment in writing before a single nail is driven. Russ Delmar leads our crew, and he’ll be the first to tell you: the biggest risk in a Madera addition isn’t the framing. It’s what the inspector finds when the wall opens up.
Why Lodgewick ADU Fresno Is Madera’s Preferred Home Addition Contractor Company
Our reputation in Madera comes from doing the unglamorous work first. Before we quote a room addition or garage conversion on a 1970s ranch in northwest Madera, we open the panel, check the rafter ties, and look at what’s actually in the walls. Most Madera homeowners we meet have been burned by a contractor who gave a low number, then sent change orders once demo started. We write the price first, and we write it after the inspection, not before.
Every Madera project runs under The Kingswell Guarantee: written price before work begins, a defined arrival window, a clean job site, and a written guarantee on every job, with a free return visit if the work fails within the 365-day guarantee period. That’s the 365-Day Done Right Promise, and it’s delivered in writing on every project. A live person answers our phones 24/7 at (559) 354-0579. No voicemail loops, no “we’ll call you back in 48 hours” when you have a question about your build.
Russ Delmar and our background-checked, uniformed technicians know Madera’s building department expectations. They know the county’s retrofit checks on slab footings, the Title 24 energy requirements that kick in once you add conditioned square footage, and the frost-depth concerns that matter on detached additions with exposed plumbing. That local knowledge is what keeps your permit moving and your price honest.
Garage Addition Contractors in Madera
Garage Addition Contractors in Madera deal with a specific reality: hundreds of the city’s 1970s – 2000s stucco ranches were built with attached garages sized for two compact cars and nothing else. When a Madera homeowner converts that garage into living space or builds out above it, we’re usually looking at a 100-amp panel that can’t handle the new HVAC load, slab conditions that weren’t poured for habitable space, and ceiling heights that need reframing to meet code. A typical garage conversion in Madera runs $90,000 – $170,000, and a garage addition with a second-story suite above it starts around $210,000.
Garage-to-ADU conversions
Madera fire and building codes require insulation, proper egress, and a separation wall between the ADU and the primary home. We handle the plans, the permit set, and the work, including the electrical service upgrade most of these projects trigger.
Detached garage additions with living space above
On the larger lots around Madera’s southeast edge, a new detached garage with an ADU above is often cheaper than a full home addition when septic or sewer capacity is already tight. We tie the new structure into the existing electrical service carefully, because adding a second dwelling’s HVAC load to a 100-amp panel will trip the county’s load calculation every time.
Bathroom Addition Contractor in Madera
A Bathroom Addition Contractor in Madera is usually working against two constraints: a slab-on-grade foundation that was never engineered for wet areas, and a sewer lateral that’s already at capacity. Adding a full bath to a 1970s Madera ranch typically costs $38,000 – $75,000, with the range driven by whether we can tie into an existing wet wall or have to saw-cut the slab and run new drain lines. If the bathroom is part of a detached ADU, the plumbing needs to be designed around Madera’s winter freeze risk from day one.
Add-on baths on slab foundations
When we add a bathroom to a slab that was poured for a patio or bedroom, a footing inspection is non-negotiable. We saw-cut, dowel in new rebar, and pour to spec so the county’s retrofit check passes the first time. That work is priced in writing before it starts.
Bathroom additions in detached ADUs
A detached ADU bathroom on a 6,000 sq ft Madera lot often needs a separate waste line run to the sewer tap, not a shared branch off the main house. We map the grade, confirm the lateral capacity, and give you a written price that includes the trenching, not an estimate that “forgot” it.
Trusted Brands We Service in Madera
Our Madera crews work regularly with prefab ADU manufacturers including Abodu, Cover, and Dvele, and we stock common materials and hardware locally so a warranty part or finish touch isn’t waiting on a two-week delivery from out of state. Abodu’s panelized units fit well on Madera’s wider lots, and Cover’s precision framing works when we’re tying a new addition into a 1970s stucco wall with uneven settlement. Dvele’s high-performance envelopes give us a head start on Title 24 compliance for Madera’s hot, dry summers. We match the right brand to your lot, your budget, and your timeline, and we service what we install.
Common Home Addition Contractor Problems We See in Madera Homes
- Aluminum wiring with no ground path. Opening up a 1970s Madera stucco wall frequently means finding original aluminum branch circuits. Before drywall goes back, we re-feed those circuits with copper and add proper grounding, because the county inspector will flag it, and a fire hazard doesn’t belong inside a new addition.
- Slab additions without footing inspections. We’ve seen additions built on patios that were never meant to carry a conditioned room. The fix is saw-cutting, doweling in new rebar, and passing the county’s retrofit check. We do that right the first time, with the price written into the contract.
- Roof framing pulled loose by decades of heat cycling. On a 1978 ranch off Avenue 13 in northwest Madera, our crew found the original 2×4 rafters had pulled away from the ridge beam by nearly half an inch from years of 110°F summer heat cycling. We sistered every third rafter with pressure-treated lumber, rewired the branch circuits for a new mini-split, and wrote the $2,300 change order before touching the wall cavity. The homeowners’ harvest-season cash stayed intact.
- Plumbing exposed to winter freeze. Detached Madera additions with crawlspace plumbing can drop below 28°F during a winter inversion. We insulate PEX lines and add heat tape where needed, because a burst pipe in a brand-new ADU is a warranty call nobody wants.
Pricing for Home Addition Contractor in Madera, CA
Here’s what Madera homeowners should expect, in writing, before any work begins. A garage conversion runs $90,000 – $170,000. A detached ADU on a 6,000 – 10,000 sq ft lot runs $160,000 – $280,000, depending on whether you choose a panelized system like Abodu or a custom stick build. A bathroom addition runs $38,000 – $75,000. A full home addition runs $180 – $420 per square foot. The biggest cost drivers in Madera are the 100-amp panel upgrade, the slab work, and the Title 24 energy package triggered by adding conditioned square footage. We write every one of those into the quote before you sign. Call (559) 354-0579 for a free estimate with real numbers.
We Also Serve Cities Near Madera
Beyond Madera, our crews cover Home Addition Contractor in Madera‘s neighboring communities, including Fresno, Clovis, Kerman, and Chowchilla. If you’re a Madera homeowner whose property sits near the Fresno County line, we can still help. Scheduling and dispatch run through our Fresno, Central Valley office, with crews serving Madera locally every week.
Serving Madera, CA - Our Local Coverage Area
We’re based in the Madera 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 Home Addition Contractor in Madera
The electrical panel. Most 1970s – 2000s Madera ranches have a 100-amp service that can’t handle an addition’s HVAC load, and the county’s load calculation will force a 200-amp upgrade before you get your final inspection. Call (559) 354-0579 and we’ll check your panel during the free estimate, so that cost is in the written quote, not a surprise.
We inspect first, then write an allowance into the contract. If we find rafter separation from heat cycling, undersized headers, or termite damage once the wall is open, we photograph it, show you the repair scope, and get your written approval on a change order before we touch anything. The Kingswell Guarantee means no price moves without your signature.
Yes. Madera’s Title 24 climate zone requires cool roofing and robust insulation for any new conditioned square footage. We spec radiant barriers, higher R-value wall cavities, and efficient mini-splits as standard on Madera additions, because 100°F+ summers are the reality and the energy code reflects it. Call (559) 354-0579 for a quote that includes the full energy package.
In most Madera neighborhoods, you’ll need to tie the ADU’s waste line into the existing sewer lateral, which may mean a separate branch run across the yard. On larger rural lots outside city limits, septic capacity is the deciding factor. We map the grade and check the lateral during the free estimate. Call (559) 354-0579 to schedule it.
We insulate all exposed PEX pipe, add heat tape to vulnerable runs, and route plumbing inside conditioned space wherever possible. Madera’s winter inversions drop crawlspaces below 28°F, and a burst line inside a finished addition is far more expensive than doing it right the first time. Call (559) 354-0579 and we’ll include frost protection in your written quote.
If you’re planning a home addition in Madera, get the number in writing before you commit. Call (559) 354-0579 today for a free estimate from Russ Delmar and the Lodgewick ADU Fresno team. No price changes at the door, no surprises after demo, just a written plan that tells you exactly what your 1970s ranch needs to pass inspection and stay comfortable for decades.
Written by Russ Delmar, Owner at Lodgewick ADU Fresno, serving Madera and the Central Valley since 2010.
