French Drains Services

Serving San Francisco and East Bay Since 1983

Protect Your Home With Expert French Drain Installation

As Bay Area homeowners face increasing challenges from heavy rainfall, flooding, and water intrusion, the need for reliable drainage solutions has never been greater. Whether you’re protecting a basement, yard, or foundation, more property owners are investing in systems that safeguard what they already love. Working with experienced contractors ensures every French drain installation is designed to manage water efficiently while preserving your home’s integrity and landscaping.

Water management is no longer just a short-term solution. Homeowners are investing in long-term protection, preventing costly water damage, structural issues, and erosion while maintaining a safe, comfortable, and valuable property. Achieving that goal requires thoughtful planning, dependable craftsmanship, and a team that understands both the practical and environmental needs of your site. With the right French drain system, your property can remain dry, secure, and resilient for years to come.

With more than 40 years of experience, Mares & Dow Construction & Skylights is the trusted Bay Area general contractor for water management and drainage solutions. We’ve installed and repaired French drains for homes of all ages and property types, delivering quality construction, precise installation, and long-lasting protection tailored to your needs. Our focus is on creating durable, efficient, and beautifully integrated drainage systems that stand the test of time.

French Drain Solutions for Changing Property Needs

As your property and landscaping evolve, so do your drainage requirements. Whether you need a new French drain to prevent basement flooding, an upgraded system for better water flow, or repairs to an existing installation, our team collaborates closely with you to create a comprehensive plan that fits your goals and budget. From protecting your home’s foundation to safeguarding gardens and outdoor living spaces, we provide smart, practical solutions that enhance both function and longevity. As your dedicated Bay Area drainage contractor, we ensure every project is smooth, efficient, and reliable. It starts with understanding your property, developing a clear and cost-effective installation strategy, and delivering high-quality work that keeps your home dry, safe, and well-protected. Discover what’s possible with Mares & Dow Construction & Skylights and bring lasting water protection to your property with confidence.
Specialty General Contractor Services
French Drains
French Drains

Ready to bring your vision to life?

Contact Mares & Dow Construction & Skylights today and let our 40 years of Bay Area expertise turn your dream project into reality.

Benefits of Going with Mares & Dow Construction & Skylights

Experience & Accreditations

Mares & Dow Construction & Skylights is certified and accredited by the best manufacturers in the industry. From Grip-Tite Foundation Systems, to James Hardie Siding, to VELUX Skylights, you can be sure to get the highest quality products for whatever your project.

Knowledge & Expertise

Serving the San Francisco Bay Area for over 40 years with quality general contracting, home remodeling, and skylight installation means you'll get the benefits of our expertise for every project.

Proven Customer Satisfaction

Maintaining a high level of customer satisfaction, we are proud to have provided our customers throughout the San Francisco Bay Area with quality construction and home improvement services for 40 years. With half of our new clients coming to us from referrals, it’s no secret that our customers/friends are truly pleased with the work we do.

40
Years of Experience

Serving the San Francisco Bay Area for 40 Years

Mares & Dow Construction & Skylights, Inc. is a longstanding partnership of 40 years between Archie Mares, Dennis Dow and hundreds of great customers throughout the San Francisco Bay Area. We are a general contractor, building custom homes, additions, home remodeling, skylights, retaining wall construction and commercial remodeling.

Maintaining a high level of customer satisfaction, we are proud to have provided our customers throughout the San Francisco Bay Area with quality construction and home improvement services for 40 years. With half of our new clients coming to us from referrals, it’s no secret that our customers/friends are truly pleased with the work we do.

Philosophy

Quality and service come first. We approach every job, big or small, with the same care and attention to detail we’d give our own homes. Our team combines time-tested building practices with modern innovation to deliver results that stand the test of time.

Get In Touch

Ready to start your next project? Whether you’re planning a home remodel, skylight installation, or foundation repair, our team is here to help.

Reach out to us for a free consultation. We’ll listen, offer expert guidance, and provide a detailed estimate tailored to your goals.

Our Mission

To enhance the lives of Bay Area homeowners through expert construction, thoughtful design, and dependable service. For over 40 years, our mission has remained simple: build with integrity, serve with pride, and create spaces our clients love to live in.

Values

We believe in integrity, craftsmanship, and lasting relationships. Every project is built on honesty, transparency, and respect - for our clients, our partners, and the homes we’re entrusted to improve.

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Words of Appreciation from Our Valued Clients

At Mares & Dow Construction & Skylights, we believe great service is its own reward. Every satisfied client, glowing review, and lasting relationship reminds us why we’ve dedicated over 40 years to building with integrity, craftsmanship, and care.

Mares & Dow Construction & Skylights installed a large Velux skylight for me in August 2017. The entire experience was wonderful and the skylight is beautiful, both functionally and aesthetically. Janet made sure the work was scheduled to be completed before a trip I had planned. Jimmy measured carefully when he quoted the work and even accommodated a last minute change on the location when he arrived to do the work. They protected my new floors and were careful to keep dust to a minimum. Archie came by to ensure that all was going smoothly. Freddy helped matched the stain on my nearly 70 year old tongue and grove ceiling that really took some effort and he even matched some a few small spots that a previous contractor had sanded and removed the original stain. EVERYONE was cheerful and knowledgeable. Now, my little mid century house has emerged into the light!

Norma B. San Francisco, California

Mares & Dow Construction & Skylights replaced two aging skylights in our bedroom and installed automatic blinds on four skylights. This was not an easy job, since our bedroom has very very high cathedral ceilings. In fact, one other skylight installer refused to do the job altogether, and a second made a bid that was almost twice as expensive as Mares & Dow Construction & Skylights. Janet Mares, who was our main contact for the job, was a pleasure to work with. Her son, Jimmy, who led the installation, was fearless climbing the ceiling, and he eally knew his stuff. We’re thrilled with our new and improved skylights, and we appreciate Mares & Dow Construction & Skylights’ solid, reasonably priced, work. Thanks guys!

Aaron R. Concord, California

I’ve had Mares & Dow Construction & Skylights install 3 sun tunnels in my home and most recently, 2 skylights in my garage/art studio. I couldn’t be more satisfied with the quality of their work and professionalism! All my communications with their office and installers have been extremely pleasant. I would use them again (and again) and highly recommend them to anyone looking to install Velux skylights/sun tunnels in their home!

Myla L. Concord, California

Being a new homeowner, i really did my research before having someone come out and give me a quote on a skylight. You never know what to believe when you read yelp reviews. So, i went ahead and had Jimmy from mares and dow come out and give me an estimate. He was right on time, came out and measured and was very professional while he was here. Janet called me a few days later and sent me over an estimate. I went them them and couldn’t be happier. It arrived in the time frame she had told me, and they were out that week. The workers came out on time, and were very friendly and professional. Dennis ( one of the owners) came out as well and checked on the job. The went above and beyond with their work. The skylight looks beautiful! Night and day from the old one. If you are wanting a skylight, i strongly reccomend going with mare and dow

Chris W. Walnut Creek, California

We had Mares & Dow Construction & Skylights install a Velux skylight in our new master bathroom. The space was small and dark, so Mares & Dow Construction & Skylights suggested a big skylight to add in lots of natural light. They built in a double crown molding to beautifully frame the skylight, and now the space is open and airy with wonderful natural light. We can open the skylight during warm months to let in fresh air. It was a superb addition to our bathroom renovation and a great suggestion from Mares & Dow Construction & Skylights. They did a fantastic job and were great to work with! Thanks guys!

Jennifer S. Walnut Creek, California

Our Service Area

  • Alameda
  • Alamo
  • Albany
  • Benicia
  • Concord
  • Berkeley
  • Danville
  • Dublin
  • El Cerrito
  • Hercules
  • Lafayette
  • Martinez
  • Moraga
  • Oakland
  • Orinda
  • Pinole
  • Piedmont
  • Pleasant Hill
  • Pleasanton
  • Richmond
  • San Francisco
  • San Ramon
  • Walnut Creek

Building Knowledge: Insights From 40 Years of Craftsmanship

At Mares & Dow Construction & Skylights, sharing knowledge is part of our commitment to great service. Our blog offers expert tips, project insights, and inspiration drawn from decades of experience building and remodeling homes across the Bay Area.
What Should Homeowners Ask Before Signing  A Deck Installation Contract?

What Should Homeowners Ask Before Signing A Deck Installation Contract?

Key Takeaways Homeowners must do their homework, and ask their contractors the right questions to confirm that they’re not working with someone who’s inexperienced, unlicensed…

Should You Consider Deck Installation  Before Selling Your Home?

Should You Consider Deck Installation Before Selling Your Home?

Key Takeaways A new deck installation before you sell your home can really add to the value and appeal of your home, particularly when your…

What Questions Should You Ask Before Hiring  A Deck Installer?

What Questions Should You Ask Before Hiring A Deck Installer?

Key Takeaways Check any deck installer’s credentials, licensing and insurance to protect yourself from potential risk and to comply with local regulations. Evaluate the contractor’s…

Frequently Asked Questions about our French Drains Services

Proper drainage is essential for protecting your home from water damage, foundation issues, and erosion. Homeowners often have questions about how French drains work, how they are installed, and what maintenance is required. To help you make informed decisions, we’ve compiled answers to the most common questions about our Bay Area French drain services.
A French drain is a specialized drainage system designed to prevent water accumulation and protect your property from flooding and water damage. It consists of a carefully graded trench filled with gravel or rock, along with a perforated pipe that collects and channels water away from vulnerable areas such as basements, foundations, low-lying yards, and landscaped spaces. The trench and pipe work together to intercept water, redirect it safely to a drainage outlet, and prevent soil erosion, foundation damage, and structural compromise. Unlike simple surface drains, French drains operate below ground to address both standing water and subsurface water flow, offering long-term protection.

We provide a wide range of French drain solutions tailored to each property’s unique layout, topography, and water management needs. This includes:

  • Perimeter foundation drains to prevent basement flooding and protect home foundations.
  • Yard drainage systems to manage surface water, low spots, and pooling areas.
  • Surface-to-subsurface French drains for redirecting excess water from gardens, lawns, or patios into underground piping.
  • Custom slope-based drainage systems that integrate seamlessly with your landscaping and hardscaping.

 

Every project is designed after a thorough assessment of your property’s soil composition, slope, and potential water flow to ensure maximum effectiveness.

The duration of a French drain installation depends on the size, complexity, and accessibility of the area to be drained. Smaller yard drainage projects can often be completed in one to two days, while larger perimeter or foundation drainage systems may require several days, depending on excavation depth, soil conditions, and the need for additional features such as catch basins or connections to existing storm drains. During your free consultation, we provide a detailed project timeline and maintain transparent communication throughout, so you always know what to expect.

Yes. As a licensed Bay Area general contractor, Mares & Dow Construction & Skylights manages all necessary permits and ensures compliance with local building codes. We coordinate inspections with municipal authorities and oversee the installation process to guarantee that your French drain meets safety, performance, and regulatory standards, giving you peace of mind and long-term protection.

Absolutely. Existing French drains can fail over time due to clogging, shifting soil, or deteriorating materials. We provide:

  • Drain cleaning and debris removal to restore proper water flow.
  • Replacement of damaged or worn piping and gravel.
  • System upgrades to handle heavier rainfall or new landscaping changes.
  • Regrading and structural improvements to optimize drainage efficiency.

 

Our repair and upgrade solutions ensure your drainage system continues to protect your property effectively.

Yes. French drains installed by Mares & Dow Construction & Skylights are specifically engineered for Bay Area rainfall patterns, soil conditions, and common water flow challenges. Properly installed French drains redirect water away from vulnerable areas, prevent basement flooding, protect foundations, and minimize soil erosion. By addressing both surface and subsurface water, they provide reliable, long-term protection against seasonal storms and unpredictable weather events.

Our installation process begins with a comprehensive site evaluation that includes:

  • Assessing the property’s topography and slope.
  • Testing soil type and drainage capacity.
  • Identifying water entry points and pooling areas.

 

Based on this assessment, we design a system tailored to your property, using high-quality perforated piping, properly sized gravel, and precise trench grading. Every installation is executed with expert craftsmanship to guarantee consistent water flow, prevent clogs, and ensure years of reliable operation.

Getting started is simple. Schedule a free consultation with Mares & Dow Construction & Skylights. Our team will visit your property, evaluate your drainage challenges, discuss your goals, and develop a detailed plan for a French drain system designed specifically for your needs. From custom design and permitting to installation and follow-up, we handle every step, ensuring your home stays dry, safe, and well-protected.