Temprano Construction is a licensed New Jersey general contractor serving Warren Township homeowners with home additions, remodeling, roofing, and siding — led hands-on by owner Ray Temprano from initial estimate through final walkthrough.
Warren Township is one of Somerset County’s most sought-after addresses — large lots, established neighborhoods, and the kind of quiet residential character that’s genuinely hard to find in Northern New Jersey. Homeowners here aren’t looking to downsize or relocate. They’re invested in the property, the schools, and the community.
What many Warren homeowners are discovering is that their homes — most built between the 1970s and the mid-1990s — are reaching the age where the original kitchens, bathrooms, and floor plans no longer match how the house gets used. These aren’t homes that need patching. They need a thoughtful general contractor who can take on meaningful scope: the addition that finally creates the primary suite you’ve needed, the kitchen renovation that opens the floor plan, the basement that becomes something the family actually uses.
That’s the work Ray Temprano does in Warren. He’s not a volume shop. He takes on the projects worth doing right, leads them personally, and treats each job as if his own reputation is on the line — because it is.
Projects Completed
Warren’s housing stock is a mix of center-hall colonials, expanded ranches, and split-levels — largely built on larger lots than you’ll find closer to the city. That combination of square footage on the lot and square footage needed inside the home makes Warren one of the better markets in Somerset County for well-planned additions.
Whether you’re adding a rear first-floor extension, building up to add a primary suite, or converting a large garage footprint into conditioned living space, Warren lots often give us real room to work. We plan additions that look like they were always part of the house — not tacked on after the fact. Structural planning, permitting, framing, utilities, and finishing all under one GC.
A 1985 kitchen in Warren was designed around a different era of entertaining and cooking. Removing walls, adding an island, updating cabinetry and countertops — we handle the full scope, including any structural work that comes with opening up a floor plan.
Primary suites and guest baths alike. Full gut renovations from layout through tile, fixtures, lighting, and ventilation — coordinated under a licensed GC so nothing falls through the cracks between trades.
Warren basements are often large, underused, and well-positioned to become actual living space. Home offices, gyms, playrooms, rec rooms — finished properly with framing, electrical, egress, and insulation handled correctly from the start.
Homes built in the 1980s and 90s are hitting their first or second roofing cycle. We handle full tear-offs and replacements, storm damage, and siding that matches the character of Warren’s traditional colonial stock.
Replacement siding for homes throughout Warren and Somerset County — vinyl, fiber cement, and engineered wood options.
Warren homeowners tend to come to major projects — especially additions — with more preparation than most. Many have already engaged an architect. Some have plans in hand. That’s a good thing.
Ray has built relationships with architects across Northern New Jersey precisely because the work holds up. When an architect refers a client to a general contractor, their own reputation is attached to the recommendation. They refer Ray because he executes to plan, communicates clearly throughout, and doesn’t cut corners when the inspector isn’t looking.
If you’re coming to us with architect plans already in hand, the estimate process moves faster and the scope is cleaner. If you’re earlier in the process and need a referral to an architect based on your project type and location, Ray can make that connection based on geography and fit.
Either way, the proposal you receive from Temprano is itemized — every inclusion and exclusion spelled out before you commit to anything. Scope changes are communicated with cost implications before they happen, not invoiced as surprises afterward.
Moving out of Warren means giving up your lot. In a township where the land itself is part of what you paid for — the setbacks, the trees, the space between you and your neighbors — that’s not a trade most homeowners want to make. Buying comparable square footage on a comparable lot in Somerset County costs significantly more than adding it to what you already own.
A well-executed addition runs $200–$400 per square foot depending on scope, materials, and addition type. A rear addition that adds a primary suite and mudroom might run $150,000–$250,000. A full second-story add-a-level on a ranch footprint will be more. In either case, you’re investing in a property you’ve already chosen — on a street you know, in a school district you trust.
We’ve seen it consistently: the Warren homeowners who decide to build instead of move are the ones who end up most satisfied two years later. The ones who sell often find that what they bought doesn’t quite match what they left behind.
No two jobs are the same, but the process is consistent:
Projects Completed
From our base in Northern New Jersey, we regularly work throughout Warren Township and the surrounding area:
Warren · Watchung · Basking Ridge · Bedminster · Long Hill · Chester · Stirling · Millington
We also serve homeowners across Essex, Bergen, Morris, Passaic, and Union counties. If you’re within an hour of Belleville, we can reach you.
Yes. Warren Township requires permits for additions, significant renovations, and structural work through the Township’s Construction Office. Temprano handles all permit applications as part of our standard process — this isn’t a separate charge or an afterthought. Municipal review timelines are outside our control, but we plan around them and keep you informed throughout.
Homes from this era are generally post-lead-paint era (1978 cutoff), but they often have aging electrical panels, HVAC systems, and insulation that benefit from review during a renovation. A full addition or gut remodel is a natural time to assess and address these. Ray identifies potential issues during the scope walk — before the proposal, not after demolition.
Both. If you have an architect and plans ready, we can move directly to an estimate — plan-ready clients accelerate the timeline and reduce scope ambiguity. If you’re earlier in the process and need an architect recommendation, Ray maintains relationships with architects across Somerset County and Northern NJ and can refer based on your project type and location.
Most additions run $200–$400 per square foot depending on scope, materials, and type. A 600 sq ft rear addition might run $120,000–$240,000; a full second-story add-a-level on a larger ranch footprint will cost more. Every Temprano proposal is itemized — you know what you’re committing to before you sign. For a full breakdown by addition type, see our [NJ home addition cost guide].
Yes. Ray is on-site at every project he takes — he’s not the person who sells the job and disappears. If you call or text mid-project, you reach Ray, not a dispatcher. This is the core of how Temprano operates, and it’s the reason architects and high-end realtors refer their best clients here.
Yes. Temprano Construction holds NJ Home Improvement Business Contractor License #13VH11462700, active and verified. Licensed and insured in New Jersey.
Whether it's improving your home or upgrading your business space, we make every project simple, stress-free, and built to last.
