Should you caulk between siding boards?

• <div><p>Professional installers typically recommend caulking between siding boards, but it depends on the material. With <a href="https://www.angi.com/articles/hardie-board-vs-cement-board.htm">Hardie board and fiber cement siding</a>, manufacturers don't recommend adding caulk because it can trap moisture in the joints or discourage flexibility in fluctuating temperatures. Consult your local siding contractor about caulking best practices before adding any to your home’s exterior.</p></div>

Is clapboard siding insulating?

• <div><p>Traditional clapboard siding, particularly with panels made from wood, is not a significant insulator on its own. However, you can keep your home cooler in summer and warmer with "insulated clapboard siding," which is a type of vinyl clapboard siding with a built-in foam insulation. Consult a local siding contractor to determine whether insulated siding is right for your home.</p></div>

How do you know when siding needs to be replaced?

• <div><p>Signs that you need to replace your siding include siding that’s warping, bubbling, or cracking; signs of rot or mold growth; fading, peeling, or chipped siding or paint; or siding that’s separating from the exterior of your house. Failing to replace your siding when it’s damaged can lead to moisture problems or structural damage, so promptly repair or replace siding as soon as you notice any of these signs. </p></div>

What is aluminum siding’s insulation value?

• <div><p>On it own, aluminum siding has a relatively low insulation value (also called <a href="https://www.angi.com/articles/what-r-value.htm">R-value</a>); aluminum siding has an R-value of <b>0.61</b>. However, you can purchase insulated aluminum siding to increase the R-value to between <b>2 and 5</b>. You can also install additional insulation within your walls to help maintain temperatures within your home. On average, <a href="https://www.angi.com/articles/how-much-does-insulation-cost.htm">insulation costs</a> <b>$1,825</b> to install throughout the typical home.</p></div>

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Q: Why don’t people use aluminum siding anymore?

• <div><p>Contrary to popular belief, people still do use aluminum siding for their homes&mdash;but it&rsquo;s much less popular than it was in the mid-1900s. The introduction of various <a href="https://www.angi.com/articles/types-vinyl-siding.htm">types of vinyl siding</a> as an affordable option reduced the demand for aluminum, which is prone to scratching and denting and needs to be repainted every five to 10 years. Given the abundance of <a href="https://www.angi.com/articles/siding-experts-discuss-best-types-and-cost.htm">house siding options</a>, especially newer and more popular types like <a href="https://www.angi.com/articles/what-is-stone-veneer.htm">stone veneer siding</a>, aluminum siding has simply just fallen out of favor.</p></div>

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Verified Reviews for Siding Service pros in Portola, CA

*The Angi rating for Siding Service companies in Portola, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Siding Service needs.

*The HomeAdvisor rating for Siding Service companies in Portola, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Siding Service needs.

Last update on November 01, 2025

Reviewed in January 2018
We hired Tom and his crew to repair/replace an old wood deck attached to our barn, replace siding and a sliding glass door. He worked fast, was knowledgeable, and did quality work. He came out promptly to give an estimate. The only downside was that he wasn't able to start the job as quickly...
T N T Construction
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Reviewed in August 2015
Called from work to schedule inspection/ estimate around july 20th. Before I even got home Ralph already visited the house, inspected and drew up a contract/estimate. (Home is about 1200 square feet) Cost was $6000 for job, 50% down payment, balance to be paid off in full on completion. Work...
R SANCHEZ ROOFING
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Reviewed in April 2015
Called Darrell's Pumping the morning of 3/24/2015 and scheduled an appointment for that afternoon. We were not having any issues, but are in the process of re-landscaping the front yard. We wanted to know the precise location of the tank and to have risers installed so that the tank would be...
DARRELL'S PUMPING
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Reviewed in July 2013
We don't get much rain out hear in desert, so i didn;t know till too late roof leaked in a spot that had no problems before Sundance worked on it. Eve over side of garaged leaked. At first I thought wind blew rain over so side of garage got wet. After a few years I craned my neck under and...
SUNDANCE ROOFING
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Reviewed in March 2013
We recently purchased a new to us house, and one day the garage door remote and the keypad wouldn't open or close the garage door. I was worried about security, so I called "All Access Garage Doors". They came promptly the next morning, and naturally when they arrived everything was working...
All Access Garage Door Co LLC
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Reviewed in November 2011
Called Sasso Bello to get an estimate on repairing the cracked tile grout in our walk-in shower. Robert was able to come out the next day to give me an estimate on our problem free of charge. He arrived on time and was very knowledgable on other possible problems and causes related to our...
Sasso Bello
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Reviewed in June 2011
The wood they replaced in my hardwood floor did not match at all and I had to call them out three more times to try to correct it. They also used the side of my building to wipe their brushes and stained it and then spilled stain all over the walkway and I had to call them out two more times to...
Kalley Flooring
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Reviewed in December 2005
THE COMPANY DID A GREAT JOB & THEY EVEN REPAIRED SOME OF OUR SIDING. THEY WERE VERY FAIR WITH THE PRICE & DID AN EXCELLENT JOB. THEY ALSO FINISHED IN THE TIME-FRAME THEY SAID THEY WOULD.
JOE GIACOMO CONTRACTING
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Reviewed in December 2005
WE ARE VERY HAPPY AND SATISFIED WITH THIS COMPANY. THEY PUT THE FLOWERS AND BUSHES IN THE FRONT AND SIDE OF THE HOUSE JUST LIKE WE ASKED. IT WAS EXACTLY WHAT WE WANTED. THE PRICE WAS EXACTLY WHAT THEY ESTIMATED IT TO BE AND EVERYTHING LOOKED NEAT.
Anthony's Landscaping LLC
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Vinyl Siding Install or Completely Replace

Vinyl Siding Repair or Partially Replace

Wood or Fiber Cement Siding Repair or Partial Replacement

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JRD Construction

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Lake County Contractors

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R&H Construction

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BKH Construction

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SW Construction

Tommy Treehouse

Tommy Treehouse

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JR Squared Comstruction

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Mario Mejicanos Construction

The Portola, CA homeowners’ guide to siding services

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