*The Angi rating for Roofing companies in Los Altos, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
*The HomeAdvisor rating for Roofing companies in Los Altos, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
Last update on July 16, 2025
America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996
"They didn't do what they said that they're gonna do. The paint job was spotty and it was unfinished cabinet work. I tried to call them to let know and they never even know who I am."
LeslieAnn G on August 2021
America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996
"They didn't do what they said that they're gonna do. The paint job was spotty and it was unfinished cabinet work. I tried to call them to let know and they never even know who I am."
LeslieAnn G on August 2021
Thank you for considering Northern California Roofing Co for all your roofing needs. Northern California Roofing Co, a division of NIR West Coast, Inc., has been serving our neighbors throughout the Northern California area for over 25 years. We specialize in all phases of the roofing process; from roof repairs to re roofing, from maintenance programs to complete roof overhauls. Our family here at Northern California Roofing Co is dedicated to serving your needs in a timely manner with an emphasis on quality craftsmanship as well as a commitment to customer service excellence. We pride ourselves in being a “one-stop contractor” in the roofing industry. Additional DBA - NIR West Coast Inc. Additional contact name - Greg Lynn. Additional email - [email protected]. Award winning.
"They re-roofed my 3-bedroom house with skill. Under the old shingles was about 96 sq. ft. of rot. They excavated and rebuilt those portions with quality work."
Tim R on June 2024
Thank you for considering Northern California Roofing Co for all your roofing needs. Northern California Roofing Co, a division of NIR West Coast, Inc., has been serving our neighbors throughout the Northern California area for over 25 years. We specialize in all phases of the roofing process; from roof repairs to re roofing, from maintenance programs to complete roof overhauls. Our family here at Northern California Roofing Co is dedicated to serving your needs in a timely manner with an emphasis on quality craftsmanship as well as a commitment to customer service excellence. We pride ourselves in being a “one-stop contractor” in the roofing industry. Additional DBA - NIR West Coast Inc. Additional contact name - Greg Lynn. Additional email - [email protected]. Award winning.
"They re-roofed my 3-bedroom house with skill. Under the old shingles was about 96 sq. ft. of rot. They excavated and rebuilt those portions with quality work."
Tim R on June 2024
Positive Results Roofing Company is a family business committed to providing the highest quality products and services resulting in exceeding the expectations of our customers, employees, and suppliers. Through teamwork and understanding, we constantly strive for continuous improvement, positive community involvement, and fair profits. We have been in business since 1983 and still providing the best products & services.
"Pete (the owner) and his roofing crew (Genaro, Alberto, Pedro) were great! Pete replied promptly to my initial inquiry and came out right away to look at the roof. Following that, it took somewhat longer than I had hoped to get an initial bid and to actually start the job, but his bid turned out to be lower than the others, and I could see that the delay was for the right reason -- Pete always prioritizes the roof he's already working on to make sure it's done well and as quickly as possible, so a house doesn't stay unprotected for longer than necessary. Once they finally finished earlier projects and started working on our roof, they were 100% on task from start to finish. They are a small company and ours was a complex, 4000+ square foot roof that required ordering special materials along the way, so it took about a month to complete the job with 3 guys working 40 hours per week. However, I really appreciated the way they always started promptly on time each day and worked closely with my wife and I throughout the entire process to make sure work was being done exactly as we (and the City's historic rules) needed it done. Pete and his crew were friendly and very accommodating of special requests related to the historic peculiarities of our house, skylights, neighbor's concerns about parking, etc. Many parts of the roof required creative, on-the-fly problem solving, due to the non-standard construction of our 1800's house. Genaro, especially, was great at innovative problem solving and did beautiful work, but everyone on the team was super dedicated, hard working, and skilled. We have already had one heavy downpour since the new roof went on, and not a single drop got through! I can confidently recommend Positive Results Roofing if you are looking for a small, personable company that is licensed and bonded and does quality roof replacements or repairs for a reasonable price."
Steven M on September 2022
Positive Results Roofing Company is a family business committed to providing the highest quality products and services resulting in exceeding the expectations of our customers, employees, and suppliers. Through teamwork and understanding, we constantly strive for continuous improvement, positive community involvement, and fair profits. We have been in business since 1983 and still providing the best products & services.
"Pete (the owner) and his roofing crew (Genaro, Alberto, Pedro) were great! Pete replied promptly to my initial inquiry and came out right away to look at the roof. Following that, it took somewhat longer than I had hoped to get an initial bid and to actually start the job, but his bid turned out to be lower than the others, and I could see that the delay was for the right reason -- Pete always prioritizes the roof he's already working on to make sure it's done well and as quickly as possible, so a house doesn't stay unprotected for longer than necessary. Once they finally finished earlier projects and started working on our roof, they were 100% on task from start to finish. They are a small company and ours was a complex, 4000+ square foot roof that required ordering special materials along the way, so it took about a month to complete the job with 3 guys working 40 hours per week. However, I really appreciated the way they always started promptly on time each day and worked closely with my wife and I throughout the entire process to make sure work was being done exactly as we (and the City's historic rules) needed it done. Pete and his crew were friendly and very accommodating of special requests related to the historic peculiarities of our house, skylights, neighbor's concerns about parking, etc. Many parts of the roof required creative, on-the-fly problem solving, due to the non-standard construction of our 1800's house. Genaro, especially, was great at innovative problem solving and did beautiful work, but everyone on the team was super dedicated, hard working, and skilled. We have already had one heavy downpour since the new roof went on, and not a single drop got through! I can confidently recommend Positive Results Roofing if you are looking for a small, personable company that is licensed and bonded and does quality roof replacements or repairs for a reasonable price."
Steven M on September 2022
Our company is Diamond Certified and rated A+ with the Better Business Bureau. We have many different finance options available.
"Very professional company and very clean. Work is top notch and I would recommend them to anyone I come in contact with. Great job"
Ron S on March 2024
Our company is Diamond Certified and rated A+ with the Better Business Bureau. We have many different finance options available.
"Very professional company and very clean. Work is top notch and I would recommend them to anyone I come in contact with. Great job"
Ron S on March 2024
Call now for our Angie's List only offers. Everyone wants to improve the look of their home and its energy efficiency. While many California residents share these goals, they don't know where to begin to make these goals a reality. Are you looking for a window installation and exterior coating contractor company that is fair, honest and hard-working? What about technicians who are always on time, stand by their word, and have won the Super Service Award in all of these categories, Approved Contractor measures up. Whether you have a specific window in mind (we carry all lines of windows) or simply wish to cut down your energy bills, our window installment services are exceptional. Our texture coating services are sure to leave you loving the look of your house again, will keep the inside of your home cooler, and are able to withstand all kinds of elements. License #952272
"Great company to work with! Windows look great! Everyone we had contact with was friendly and responsive. The workers were punctual and gave an accurate timeframe of when the job would be completed. They went above and beyond by returning a few weeks later to install a patio door that we had accidentally purchased in the wrong size. We have already recommended Approved Contractor to our parents for window replacement!"
Roxanne A on March 2020
Call now for our Angie's List only offers. Everyone wants to improve the look of their home and its energy efficiency. While many California residents share these goals, they don't know where to begin to make these goals a reality. Are you looking for a window installation and exterior coating contractor company that is fair, honest and hard-working? What about technicians who are always on time, stand by their word, and have won the Super Service Award in all of these categories, Approved Contractor measures up. Whether you have a specific window in mind (we carry all lines of windows) or simply wish to cut down your energy bills, our window installment services are exceptional. Our texture coating services are sure to leave you loving the look of your house again, will keep the inside of your home cooler, and are able to withstand all kinds of elements. License #952272
"Great company to work with! Windows look great! Everyone we had contact with was friendly and responsive. The workers were punctual and gave an accurate timeframe of when the job would be completed. They went above and beyond by returning a few weeks later to install a patio door that we had accidentally purchased in the wrong size. We have already recommended Approved Contractor to our parents for window replacement!"
Roxanne A on March 2020
We are the most certified contractor in the bay aware and we pride ourselves with providing top notch and high quality service with technicians that have been in their fields of roofing, stucco, siding, and windows for 20+ years.
We are the most certified contractor in the bay aware and we pride ourselves with providing top notch and high quality service with technicians that have been in their fields of roofing, stucco, siding, and windows for 20+ years.
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Very high quality of work, Nice personality to work with. We have worked with John on a few times and will definitely call him back again upon our next roof needs. Would highly recommend his service to others."
Jennifer S on October 2019
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Very high quality of work, Nice personality to work with. We have worked with John on a few times and will definitely call him back again upon our next roof needs. Would highly recommend his service to others."
Jennifer S on October 2019
We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"The team was amazing! We had an old deck in our backyard and we hired Palm Construction to replace and extend it and they did a great work! The job was done in less than 2 weeks, Communication was great, they cared about the backyard and plants and we are so happy itâ s all ready just before summer. Highly recommended!!"
yael h on May 2024
We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"The team was amazing! We had an old deck in our backyard and we hired Palm Construction to replace and extend it and they did a great work! The job was done in less than 2 weeks, Communication was great, they cared about the backyard and plants and we are so happy itâ s all ready just before summer. Highly recommended!!"
yael h on May 2024
We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business. Around since 2013
"The crew was punctual, skilled, and left the site spotless. They explained everything clearly and the new roof looks amazing. Great value and peace of mind. I would definitely recommend them to anyone!"
Elen G on September 2024
We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business. Around since 2013
"The crew was punctual, skilled, and left the site spotless. They explained everything clearly and the new roof looks amazing. Great value and peace of mind. I would definitely recommend them to anyone!"
Elen G on September 2024
Winters Gutter Service, - offices in San Mateo & Palo Alto. Our specialties are gutter cleaning 40 year warranty, leaf screen, shameless aluminum rain, gutters, copper gutters sealer to prevent rusting locally owned in the bay area. We work from San Francisco to Los Gatos off of Highway 280 reasonable prices.
"Extremely fast response and service — had a quote within hours and the work was done 2 days later. Solid quality job. Project management could have been more structured but then it probably would have taken longer…"
Johan G on May 2025
Winters Gutter Service, - offices in San Mateo & Palo Alto. Our specialties are gutter cleaning 40 year warranty, leaf screen, shameless aluminum rain, gutters, copper gutters sealer to prevent rusting locally owned in the bay area. We work from San Francisco to Los Gatos off of Highway 280 reasonable prices.
"Extremely fast response and service — had a quote within hours and the work was done 2 days later. Solid quality job. Project management could have been more structured but then it probably would have taken longer…"
Johan G on May 2025
Typical roofing repairs cost between $380 and $1,800 on average. However, most homeowners spend approximately $1,100 on a roofing repair project. The size of the roof, the extent of the damage, and the type of project all impact the final cost. External factors like product availability and supply chain issues may also affect the price.
Projects like repairing damaged gutters will only be around $180 to $560, whereas repairing a sagging roof will be a higher expense at $1,500 to $7,000.
Roof repairs start at around $700.00 and go up from there. There are many significant factors that come into play, and each customer's needs will rarely be the same.
The cost to replace your roof is often significantly more expensive than the cost to repair it. On average, homeowners will spend between $5,890 and $12,800 to replace a roof. The size of the roof, the roof’s pitch, and the number of stories the house has will significantly affect the overall cost. You can expect to spend upwards of $46,000 for large, high-end roofs.
This all depends upon size, type and complexity of the actual sloped areas of the roof. An accurate estimate with detailed lists of covered and additional items is imperative when purchasing and protecting yourself during the process.
Although not every state issues licenses for roofing pros, it's important to check with your county or city if hiring a licensed roofing contractor is necessary. Hiring an unlicensed roofer might result in low-quality work and potential legal issues if an accident happens. It’s always best to check the qualifications and licenses of your roofer before they begin a project.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
Before hiring a roofing contractor to work on your project, there are a few things you will want to ask, including:
Do you use roofing subcontractors?
Do you offer a warranty?
Do you have any references?
How will you clean up after the project is complete?
Will you remove my old or damaged roof?
How long have your crews been working with you?
Do you offer a warranty?
Do you have any references?
How will you clean up after the project is complete?
Will you remove my old or damaged roof?
Roofing is a highly skilled and labor-intensive trade. Because of this, you can expect to pay an average of $2 per square foot for your roofing professional. Roofing labor costs generally make up about 60% of the overall project cost.