Room additions built to blend in
Home Additions in Boise, ID
★★★★★5.0 on Google
More space for your growing family, without the hassle of moving, built to match your home inside and out.
(208) 999-6446
Get Your Free Estimate
Mike usually replies the same day or the next.
Love Your Home, Just Bigger
When your family outgrows your house but you love your neighborhood, an addition gives you the space you need without moving.
We build additions that tie seamlessly into your home, from the foundation and framing to the roofline, siding, windows and finishes.
Addition Options
Planned around your home and your family.
Room Additions
New bedrooms, offices or family rooms added to your home.
Bump-Outs
Smaller additions that expand a kitchen, bathroom or living room.
Primary Suites
A new bedroom and bath for more privacy and comfort.
Garage Additions
Attached garages that tie into your home’s roofline.
Sunrooms
Bright rooms that bring the outdoors in.
Matched Exteriors
Siding, roofing and windows matched to your existing home.
A new addition with windows sealed into the weather barrier
Seamless from Outside to In
The best additions look like they were always part of the house. That takes careful planning where the old and new meet: the foundation, roofline, siding and interior finishes.
We frame, roof and seal the addition properly, with windows flashed into the weather barrier, and match the finishes so the transition disappears.
Matched roofline
Matched siding
Windows sealed properly
Plans and permits handled
Related Project
A look at recent work by Mike and his crew.
Three-Car Garage in Prairie
GaragePrairie, ID
A 964 sq ft, three-bay attached garage on a remote site, with siding matched to the house.
See the full projectHow It Works
A clear plan from the first visit to the final walkthrough.
1
Visit & design
Mike visits, looks at the space and talks through the home addition you have in mind.
2
Plan & estimate
You get a clear plan and a transparent estimate, and we handle any permits.
3
Build
We build it with care, with regular updates and a clean site every day.
4
Final walkthrough
We walk through the finished work with you and make sure it’s exactly right.
Why Choose Kemsley
01
Owner on Every Job
You work directly with Mike, from the first visit to the final walkthrough.
02
Honest Pricing
A clear estimate up front and no surprises once the work starts.
03
Clear Communication
You’ll always know the schedule and where things stand.
04
Respect for Your Home
We protect your property and clean up the site every day.
05
Right the First Time
Careful, quality workmanship that’s built to last.
“He is professional, knowledgeable, friendly and works well with others! He’s great with the customers.”
Beth Netto, White Mountain Plumbing LLC
Frequently Asked Questions
How much does a home addition cost?
It depends on the size, materials, design and site conditions. After a quick visit to look at the space and talk through your goals, we’ll give you a clear, itemized estimate.
Do I need a permit for a home addition?
Yes. Additions require plans and permits. Mike handles the drawings, permits and inspections for you.
Can we live at home during the addition?
Usually, yes. Most of the work happens outside the existing house until the final connection, and we keep the site clean and safe every day.
How long will the project take?
It depends on the size of the project, permits and when materials arrive. Once the plan is set, we’ll give you a realistic schedule and keep you updated along the way.
Do you handle the permits?
Yes. When your project needs a permit, Mike prepares the plans and handles the city approvals before construction begins.
Proudly local, family owned
Your Neighbors in the Treasure Valley
Kemsley Construction is a family-owned builder based in Boise, ID. Being local means Mike knows the city codes, the permit offices and what Idaho weather does to a build, and he’s never far from your project, from the first visit to the final walkthrough.
Boise
Meridian
Eagle
Kuna
Star
Nampa
Caldwell
And the wider Treasure Valley.
Ready to add on?
Tell Mike about your project. He usually gets back to you the same day or the next, and can come out to look at the space and talk through options.
Prefer to talk?
Call Today
(208) 999-6446
Monday to Friday, 7 a.m. to 7 p.m.
Get Your Free Estimate
Mike usually replies the same day or the next.