Find a home addition contractors in Diamond Bar, CA

Find home addition contractors in Diamond Bar, CA

Find home addition contractors in Diamond Bar, CA

Share a few details and we'll show you the best home addition contractors in your area.
Zip code

Find home addition contractors in Diamond Bar, CA

Share a few details and we'll show you the best home addition contractors in your area.
Zip code

Top 10 home addition contractors in Diamond Bar, CA

Homeowners agree: these pros are highly rated for knowledge, experience, communication, and more.
Pacific Sands

Pacific Sands

5.0(1)
12+ years in business
Serves Diamond Bar, CA
Rj J. says, "Very fast to reply to our questions. Also, when working Cameron and Mark they helped explain so much of the process. We felt really well informed, which was very different from other architects and designers that we worked with." Read more
E B Home Services

E B Home Services

New on HomeGuide
1 hire on HomeGuide
33+ years in business
Serves Diamond Bar, CA
Pay well attention to details. Never overpriced. Good quality of materials. Over 30 years of experience. Always try to meet customer needs. I enjoy seeing the customer's satisfaction. I love to see the final product.
GG Home Repair Services

GG Home Repair Services

5.0(1)
5 hires on HomeGuide
9+ years in business
Serves Diamond Bar, CA
Holden W. says, "Gilmer is very professional and thorough. He inspected the home inside and out. He issued a detailed report complete with photos, descriptions and recommendations for repairs. I receive the report with in the same day of my inspection. I was very happy and would recommend him highly. " Read more
Prestige Home Building

Prestige Home Building

5.0(1)
1 hire on HomeGuide
14+ years in business
Serves Diamond Bar, CA
Richard L. says, " Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Contacted Prestige to complete a bathroom remodel and because the estimate was very reasonable I had them repair some drywall and install wood flooring in our bedroom. And since that estimate was more than reasonable, I had them finish an add-on I started but couldn’t find the time to finish. They finished the drywall, framed a closet and installed the baseboards and door trim. They also re-roofed the add on as well and tarred all of the exhaust vents on the roof. Hector, the foreman was on top of everything. He and the other employees, David, Fernando, Felipe and Jose all began each day 5-10 minutes before the scheduled start time. They kept the “work dust” to a minimum by installing temporary plastic shields and paper flooring every day. The employees worked very hard with hardly a break except for lunch. Hector asked questions throughout the project to ensure our satisfaction. I have good knowledge of flooring and tiling procedures and I can tell you the work done here was great! Little details not known to normal consumers did not go unnoticed to me. The employees were professional and each wore Prestige work shirts everyday. They swept up everyday and left no trash behind (I’ve read horror stories about other company’s employees leaving their lunch trash behind at the worksites). Great employees for a great company. I feel very confident in recommending them to anybody who is in need of a remodel or any other construction needs." Read more
Alvaradomasonry

Alvaradomasonry

4.6Awesome(10)
8 hires on HomeGuide
12+ years in business
Serves Diamond Bar, CA
David E. says, "Jose fixed my retaining wall. It looks great. " Read more
Zuniga Group

Zuniga Group

New on HomeGuide
1 hire on HomeGuide
22+ years in business
Serves Diamond Bar, CA
Zuniga Group is a Design + Build company. We love to integrate beautiful architectural and landscape spaces for a harmonious living.
Quality Construction

Quality Construction

New on HomeGuide
1 hire on HomeGuide
23+ years in business
Serves Diamond Bar, CA
quality work we take pride in all aspects of our work and always strive for customer satisfaction
JD's Painting

JD's Painting

5.0Exceptional(22)
24+ years in business
Serves Diamond Bar, CA
Adriana R. says, "Great guy , awesome treats everyone with respect always willing to work and do an awesome job and has a very kind heart" Read more

Your home addition questions, answered

Answers to commonly asked questions from the experts on HomeGuide.

What is a home addition?

A home addition is a new structure added to an existing home. Home additions create more living space, accommodate a growing family, and improve the home’s overall value.

A home addition can be completed by making a single room bigger or adding an entirely new room or second story to the home. A more affordable home addition option is to convert an existing garage, basement, or attic into a more functional and comfortable living space.

Does a home addition increase property value?

A well-built home addition can increase property value. The increase in square footage adds value, especially if the addition includes functional and well-designed living spaces. An addition that adds an extra bedroom, bathroom, or larger kitchen can make the home more appealing to potential buyers.

How can I finance a home addition?

You have various financing options for a home addition, such as:

  • Home equity loans – These bank loans allow you to borrow a lump sum by using your home equity as collateral.
  • Home equity line of credit (HELOC) – Unlike a lump sum, this revolving credit line enables you to borrow against your home equity as needed.
  • Cash-out refinances – By refinancing your mortgage for an amount exceeding your current balance, the lender provides the surplus in cash, which can be used for home improvements.
  • Personal loans – Unsecured and without collateral, personal loans have higher interest rates, determined by your creditworthiness and loan approval.
  • Credit cards – Consider using a low-interest-rate credit card for smaller home additions, ensuring prompt repayment.

How can I save on a home addition?

Consider the following recommendations to reduce the expenses associated with a home addition:

  • Opt for a straightforward design with minimal features to keep costs down.
  • Construct the smallest addition that satisfies your requirements and complies with local regulations.
  • Explore the option of repurposing existing spaces, such as basements, garages, or attics, which is generally more affordable than building a new structure.
  • Do basic tasks like painting and interior finishing on your own to cut down on professional labor expenses.
  • Select budget-friendly building materials and finishes in more spaces, and splurge on a few items with the most impact.

How do I choose a home addition builder?

Follow these suggestions to get the best home addition contractor near you.

  • Seek estimates from several contractors for the same addition size and features, allowing for informed comparisons.
  • Evaluate the builder's reputation by checking recent reviews on HomeGuide and Google to assess their performance.
  • Request a site visit to see the contractor's construction methods and gauge their workmanship firsthand.
  • Choose a contractor with proven experience in the specific type of home addition you desire.
  • Protect yourself by requesting an itemized written contract that outlines the scope of work, specifications, and payment terms to prevent any misunderstandings.
  • Inquire about the contractor's preferred lenders to streamline the financing process and potentially secure better terms.
  • Exercise caution and avoid making large upfront payments. Never pay in full or in cash, as this could leave you vulnerable to potential issues.

What questions should I ask a home addition contractor?

Here are some helpful questions to ask a home addition contractor:

  • How many years have you been specializing in home addition projects?
  • How many home additions have you successfully completed within the past year?
  • Do you provide design services to help create a floor plan for the home addition?
  • Can you provide me with a list of references from previous clients, along with their contact information, so I can gather feedback on your work?
  • Do you have a portfolio showcasing your past home addition projects that I can review?
  • Are there any recent home addition projects I can visit to see the quality of your workmanship firsthand?
  • Are you fully licensed, insured, and bonded to protect me from any potential liabilities?
  • Can you advise me on the most suitable locations for building an addition to my home?
  • Can you provide me with a detailed cost estimate for the home addition project?
  • Are there any cost-effective strategies we can consider to reduce the overall expense of the project?
  • Can you provide a realistic timeline for completing the home addition project?
  • Who will be my designated project coordinator responsible for overseeing the project's progress?
  • Do you employ your own experienced crew, or do you subcontract the work to other contractors?

Reviews for Diamond Bar home addition contractors

Recent success stories from people in the Diamond Bar area.
Nathanial M.
Job: Demolish and replace 3-4' cinderblock retaining wall. Review: Mr. Alvarado and his team are true professionals. The communication and responsiveness was the best I've experienced with any contractor I have hired. Mr. Alvarado is truly skilled at his craft and created a tremendous end-product. Would hire again for any masonry work. Highly recommend.
Alvaradomasonry
Bryan B.
Very smooth guy full of energy! A very knowledge guy when it comes to getting something done!
JD's Painting
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