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…
Dry rot can sneak up on even the most well-maintained homes in Alamo. All it takes is moisture, warmth, and wood—before long, the wood begins to shrink, darken, crack, and eventually soften and decay. Exterior trim is especially prone to dry rot, and it doesn’t need to be very old to become compromised.
Fortunately, dry rot damage to trim is often straightforward to repair. The bigger concern is when dry rot affects structural elements like framing or mudsills. These repairs can be more complex and require a detailed approach. Dry rot thrives in wood with a moisture content above 20%, and that moisture can come from several sources.
Inside the home, leaks from dishwashers, washing machines, sinks, showers, and tubs are frequent culprits. Outside, common trouble spots include windows, doors, trim, roofing, and areas with cracked stucco or siding. The first step in any dry rot repair is identifying and eliminating the source of moisture. After that, it’s essential to promote proper drying conditions to prevent further damage.
Once the wood has dried out, any compromised material should be removed and replaced with pressure-treated lumber. Proper framing techniques, trim installation, and flashing are also key to preventing future rot. Finally, any remaining vulnerable wood should be treated with a quality fungicide to protect against reinfestation.
Whether it’s a small repair or a full structural restoration, trust Mares & Dow Construction & Skylights for dependable dry rot solutions in Alamo. We’ll help restore your home’s integrity and prevent future issues. Contact us today for a free estimate!
Contact Mares & Dow Construction & Skylights today and let our 40 years of Bay Area expertise turn your dream project into reality.

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.

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.

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.
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.
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.
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.
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.
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.
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!
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!
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!
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
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!
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…
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…
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…
Dry rot is a hidden but serious issue for many homes in Alamo, especially those with wood siding, decks, eaves, and shaded exterior areas. Seasonal rains, irrigation runoff, and limited airflow can allow moisture to seep into wood and trigger decay. If left untreated, dry rot can compromise both appearance and structural integrity. Here are answers to common questions Alamo homeowners ask about professional dry rot repair.
Dry rot is wood decay caused by fungi that thrive in moist environments. In Alamo, irrigation systems, winter rainfall, and shaded landscaping can keep exterior wood damp, making homes more susceptible—especially older or custom-built properties.
High-risk areas include window sills, fascia boards, roof eaves, decks, balconies, door frames, and siding near soil or sprinklers. Homes with mature trees or limited sun exposure often experience rot sooner.
Dry rot often causes wood to feel soft, crumbly, or spongy and may show cracking, discoloration, or peeling paint. A professional inspection is the best way to determine whether the damage is superficial or structural.
It can be. If the rot affects framing, beams, joists, or load-bearing elements, it is considered structural and must be repaired correctly to meet local building standards and safety requirements.
Permits are typically required when structural components are replaced or modified. An experienced contractor can identify when permits are needed and handle the approval process with Contra Costa County or local authorities.
Costs vary depending on the severity, location, and materials involved. Minor trim repairs may be relatively affordable, while extensive structural repairs can cost several thousand dollars. An on-site evaluation provides the most accurate estimate.
Smaller repairs may take a few days, while larger or structural projects can take one to two weeks. Timelines may also depend on permitting, material availability, and weather conditions.
Prevention includes improving drainage, redirecting sprinklers away from wood surfaces, sealing exterior penetrations, maintaining paint and caulking, and ensuring proper ventilation in crawl spaces and attics.