Answers to commonly asked questions from the experts on HomeGuide.
How much does it cost to finish or remodel an attic?
The cost to finish an attic is $50 to $150 per square foot on average, depending on the purpose of the finished space and the level of finishing or remodeling involved. Converting an attic to a habitable living space costs the most—anywhere from $20,000 to $100,000+ depending on the size and scope of the remodel. Finishing an attic for better storage is the cheapest, starting at around $5,000, since the space is not subject to so many building code requirements.
Can you finish any type of attic?
No. You can finish some types of attics, but not all types. Some attics present major structural challenges, and some are simply not large enough to satisfy all the building code requirements to convert the attic to a living space.
An attic with roof truss framing does not usually have enough space or structural integrity to be finished unless you completely reframe the roof. This makes the project much more costly.
An attic with a pull-down hatch entrance cannot be converted to a code-compliant living space without installing permanent stairs connecting to the first floor. If you live in a very small home, a staircase may take up too much of a footprint on the first floor.
Some attics are too small to finish to code, regardless of the roof framing. Many attics have sloped ceilings, and building codes require at least 50% of a room with sloped ceilings to have 7-foot ceiling height.
Does finishing an attic increase home value and square footage?
Finishing an attic increases a home's value when converting the attic to a habitable living space that counts as additional square footage. Including a bathroom in the finished attic tends to have the highest return on investment. Basic finishing that simply improves the attic storage space will not increase resale value, but this extra feature may still add perceived value for potential buyers.
How long does it take to finish an attic?
Finishing an attic takes 4 to 8+ weeks, depending on the project scope. Converting the attic into a living space with a primary bedroom and bathroom will take much longer than a simple finishing job to create a playroom, office, bonus room, or improved storage space.
Do I need a permit to finish my attic?
You may need a permit to finish your attic, depending on what type of finished space you're creating. Projects that involve any changes to the home's structure, electrical wiring, plumbing, or ventilation require a permit. Contact your local permitting authorities to determine the requirements for your specific project.
How do I choose an attic remodeling company near me?
Follow these guidelines to help you choose an attic remodeling contractor near you:
Compare 3 to 5 attic finishing estimates with similar details.
Confirm the business is licensed, insured, and bonded.
Look for a firm or contractor specializing in attic finishing and remodeling.
Look for companies with positive reviews on HomeGuide and Google
Ask for references and a portfolio with pictures of similar projects.
Require a detailed contract and warranty in writing before the work begins.
Avoid large upfront payments, and only pay the final bill after the newly finished attic has passed all necessary inspections.
What questions should I ask when getting estimates for attic finishing?
Finishing your attic may involve major structural changes to your home. Consider asking these questions to help you select the best attic finishing contractor or firm near you:
Are you licensed, bonded, and insured?
How long have you been working in this area?
What experience do you have with attic finishing and remodeling?
Will my home need any structural work to be able to finish the attic?
What does your estimate include?
What additional costs might come up during the construction?
How long will it take to finish the attic?
Can I stay in the home during the project?
What permits do I need, and do you handle the permitting process?
Do you guarantee your work?
Reviews for Sunnyvale attic remodeling contractors
Recent success stories from people in the Sunnyvale area.
Jeff L.
Working with Cube Construction INC was a great experience from start to finish. The team was professional, responsive, and always on time. They kept the worksite clean and made sure we were informed at every stage of the project. The final result exceeded our expectations — high-quality work, attention to detail, and no shortcuts. Would definitely recommend them to anyone looking for a reliable contractor.
Cube Construction INC
Leah K.
Sigura Construction did landscape work in my backyard as well as a bathroom remodel, and installation of new flooring throughout my house. I cannot say enough about how amazing my backyard looks. New grass, a beautifully paved walkway, a water fountain with a serene sound, and the most colorful flowers I've ever had! My bathroom is also better than what my original plans called for, and I'm so glad that the owner, Ilan, made the suggestion he did for the wall ledge in the shower. Such a functional feature, that eliminates the need for a plastic shower caddy to hold my shampoo and conditioner. And the combination of tile and hardwood flooring to distinguish between the family room and the rest of the house was such a great idea by Doug, the production manager. And the crew that worked at my house was clean and respectful. I am pleased as punch, and will definitely use Sigura Construction again, if ever another construction need arises!
Sigura Construction
Arnon R.
LeCut and our project manager Yari Berdugo did an excellent job constructing a carport on our driveway. The work I clided drilling in asphalt, setting up foundations for the car port and constructing an elaborate metal structure. The team delivered beautiful work on time to our complete satisfaction. We will definitely use them again
LeCut Construction
Kimberly K.
They did a quality drywall and painting job. They showed up and got the job done on time.
Smart Quality construction inc
Sharad K.
Fern with Bella Homes did a phenomenal job of our attic remodeling project. It was a complex construction project that involved reinforcing the foundation, replacing stud walls with shear walls, building a staircase, and fully converting the attic to a habitable space with a bathroom and a patio.
Fern’s communication was stellar and he kept us updated on the project status. He was on top of any issues that arose and addressed them timely. Fern is a perfectionist and supervised the project with a sharp eye for the details. His crew is very experienced and executes very well. Fern managed the city inspections in a professional manner and we passed all of them with no rework!
With a project as involved as ours, Fern was quite flexible in accommodating our input. He offered great advice on interior decoration decisions ranging from picking interior/exterior color of the house to setting up the fireplace with a distressed mantlepiece. Fern ensured that the layout, flow, and appearance of the house were in harmony and ultimately delivered the project to our utmost satisfaction.
BELLA HOME BUILDERS, INC.
GARY L F.
THE WORKERS WERE HERE ON TIME EACH DAY. THEY ALWAYS CLEANED UP BEFORE LEAVING. THE JOB WAS DONE ON TIME AND I HAVE NO COMPLAINTS..VERY NICE WORK.. GARY
Defersol building contractor
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