







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Blanco Home Additions & ADU: The Sacramento Owner’s Guide
Blanco home additions and ADU construction in Sacramento typically runs $45,000 – $130,000 for an addition, with ADUs landing between $90,000 – $220,000 depending on size, foundation work, and finish level. We’re the local contractor homeowners call when they need a Blanco-compatible addition or ADU priced honestly and built without the usual runaround. Most owners reach out after realizing their existing Blanco kitchen or bath layout can’t expand without a structural addition, or they’ve outgrown the footprint and need a permitted ADU in the backyard. The written price comes before the first hammer swings, and the 365-Day Done Right Promise covers the work in writing.
Penhallow Remodeling Sacramento is an independent contractor, not affiliated with Blanco. We simply know their product lines well enough to integrate additions and ADUs that match what you already have.
Key Takeaways:
- Sacramento home additions: $45,000 – $130,000 installed; ADUs: $90,000 – $220,000
- Written price before any work starts, not a verbal ballpark
- 365-Day Done Right Promise on every project, in writing
- Background-checked, uniformed crew, same standard on every job
- Free estimate: call (279) 300-1177
Which Blanco Models This Applies To

Blanco doesn’t manufacture structural components, so what we’re really talking about is matching an addition or ADU to your existing Blanco kitchen and bath fixtures: BLANCO SILGRANIT sinks, BLANCO faucet lines like the LINUS and CULINA, and their various sink configurations (single bowl, double bowl, undermount, farmhouse). The compatibility question is whether your new square footage will support the Blanco fixtures you already own or plan to install. A farmhouse Blanco sink needs a specific cabinet base width, typically 30 to 36 inches, and the countertop overhang has to clear the apron front. An undermount SILGRANIT sink wants a countertop fabricator who understands the reveal, not an installer guessing at the cutout.
When we plan a Sacramento addition around a Blanco kitchen, we spec the rough-in dimensions from the Blanco cutout template before the cabinetry order is finalized. That’s the kind of detail that prevents a $600 sink from becoming a $1,800 countertop re-cut. We also coordinate the Blanco faucet hole spacing, standard 8-inch centers on most Blanco models, against the countertop drilling. If you’re carrying over an older Blanco fixture, we verify the model specs against current mounting standards because some 2000s-era Blanco faucets used non-standard hole diameters that newer countertops don’t come pre-drilled for.
Styles & brands we work with






Signs Your Blanco Home Additions & ADU Is Failing
Additions and ADUs don’t fail like a dishwasher. They fail in stages, and most homeowners in Sacramento notice one of these five things first:
- Cracks at the drywall seams or ceiling corners of the addition. This usually means the foundation settled more than the original structure, or the tie-in between old and new wasn’t handled with proper expansion control. Sacramento’s clay soil expands and contracts through wet and dry seasons, and that movement has to be designed for, not ignored.
- Gaps opening around windows and doors in the new space. The framing may not have been properly strapped or the header undersized. Sacramento wind loads plus summer heat cycles push poorly framed openings out of square within a few years.
- Moisture staining on the new bathroom or kitchen walls. This points to a ventilation or waterproofing shortfall behind the Blanco fixtures. The bathroom fan may be moving air but not enough, or the shower waterproofing wasn’t carried high enough behind the tile.
- Uneven floors where the addition meets the original house. The new foundation was either poured too high or has settled at a different rate. You feel it as a lip or slope at the transition, and it makes the Blanco kitchen island rock if it straddles the seam.
- Electrical flicker or breakers tripping in the added rooms. The new circuits may be undersized for the loads, or the panel wasn’t upgraded to code when the addition was built. Sacramento inspectors flag this regularly on remodels, and it needs a licensed fix, not a bigger breaker.
See the difference
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After
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AfterReplacement Cost & What’s Included

In Sacramento, a home addition runs $45,000 – $130,000 installed. The spread comes down to square footage, foundation type (slab versus raised), roof tie-in complexity, and the level of finish you want around your Blanco kitchen or bath. A simple bump-out with a crawlspace foundation and basic finishes lands at the lower end. A two-story addition with structural steel, new rooflines, and high-end finishes sits at the top. ADU construction runs $90,000 – $220,000 in Sacramento because of permit fees, utility connections, and the cost of bringing power, water, and sewer from the main structure out to the new unit. Pre-fab ADUs are marginally cheaper up front, but site work, foundation, and connection costs usually close most of that gap.
What’s included in our number: demolition and disposal, foundation and framing, roofing tie-in, window and door installation, drywall and paint, flooring, electrical, plumbing, HVAC extension, and a Blanco-compatible kitchen or bath if that’s part of the scope. What’s not included, and what you should ask any Sacramento contractor about: permit fees, plan review costs, and any utility company charges for service upgrades. We list those as separate line items so the written price you sign is the number you can hold us to. The 365-Day Done Right Promise covers the entire project, including the Blanco fixtures we install.
DIY or Call Us?
You can safely check a few things before you call. Look for visible cracks at the foundation line, gaps around windows, or moisture stains on ceilings. Note whether the issues appear seasonally, Sacramento clay soil shifts noticeably between August and February, and whether the problem is in the added structure alone or spreading into the original house. You should not attempt to fix any of this yourself. Foundation tie-ins, roof framing, electrical panel work, and structural modifications are matters of code compliance and personal safety. A failed structural connection doesn’t just look bad, it can come down on someone. Tell me what you want the room to feel like, and I’ll tell you what it actually takes to get there. Then call (279) 300-1177 and we’ll give you a written number before any work starts.
FAQs

A properly built Sacramento addition lasts 50 to 80 years for the structure, while the finished surfaces inside, including Blanco kitchen and bath areas, typically need refresh every 15 to 20 years. The wildcard is soil movement; additions with properly engineered foundations and expansion joints handle Sacramento clay cycles without structural issues. Call (279) 300-1177 for an exact quote, estimates are free.
Yes, in many cases the fix is targeted: reinforcing a foundation, re-flashing a roof tie-in, or adding expansion control at the old-to-new transition can resolve the problem without a full rebuild. We assess what’s failing before recommending any scope. Call (279) 300-1177 to schedule a look at the specific issue.
Permitting typically takes 4 to 8 weeks in Sacramento, and construction runs 3 to 6 months for an addition and 6 to 10 months for an ADU, depending on site conditions and finish level. We give you a written schedule with a defined arrival window before work starts, not an estimate range. Call (279) 300-1177 for a project-specific timeline.
We coordinate directly with countertop fabricators and cabinet suppliers to match Blanco cutout templates and mounting specs, and we keep Blanco, KraftMaid, Cambria, and Silestone on our approved materials list for every kitchen or bath we build into an addition or ADU. What we order is scheduled around your project timeline so nothing sits on a shelf collecting dust. Call (279) 300-1177 to discuss your Blanco setup.
No, not unless you change the scope. The written price we give you before any work starts is the number on the final invoice, and if something we installed fails within a year, we come back and fix it at no charge under the 365-Day Done Right Promise. Call (279) 300-1177, and we’ll put it in writing.
Trevor Nash got his start in the trades at Los Angeles Trade-Technical College and spent two decades swinging a hammer across Southern California before bringing his crew to Sacramento. We’ve done kitchen gut-outs in East Sacramento and bathroom rebuilds near McKinley Park, and we price the job straight the first time, every time. Call (279) 300-1177 to schedule your free estimate, and we’ll have the written number in your hands before any work begins.
Written by Trevor Nash, Owner, Penhallow Remodeling Sacramento at Penhallow Remodeling Sacramento, serving Sacramento and nearby areas.


