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Los Altos, 94024: Discover Superior Building Efficiency Solutions in Los Altos with SDI Insulation

For nearly half a century, we've been dedicated to assisting Californians in constructing and retrofitting highly efficient residential buildings, offering substantial savings and environmental advantages. Trust SDI as your dependable Building and Home Performance Specialists for an eco-friendly lifestyle.


Ready to Build Efficiency with SDI?

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Los Altos, CA's Insulation Experts for over 47 Years!

Top Residential, New Construction, and Remodel Insulation Types for Los Altos, CA 94024

Our Services

Residential Insulation Services

NEW CONSTRUCTION & REMODELS


Elevate your living space with our energy efficient insulation solutions, perfect for remodels, retrofits, additions, and new constructions, ensuring comfort and energy efficiency in every project.


-Spray Foam Insulation

-Blown Insulation

-BATT Insulation

-Insulation Removal

-Sound Deadening Insulation & more!


Commercial Insulation Services

Explore our comprehensive range of commercial insulation services, tailored for office buildings, retail spaces, parking garages, tenant improvements, and much more. Click here to discover the perfect insulation solutions for every commercial project, ensuring efficiency, comfort, and safety in every space.


K13 Applicator

SDI Fireplaces

Discover elegance and efficiency with our range of Gas, Electric, and Direct-Vent Fireplaces, including stylish inserts, designed to elevate your home's ambiance and warmth

Your All-in-One Insulation & Fireplaces Solution


Unlock the Potential of Your Space with SDI Insulation, Inc. As the leading insulation and home performance contractor in the San Francisco Bay Area, California, we're dedicated to delivering excellence in every project. Whether it's residential, new construction, remodel, or commercial, our team is here to optimize comfort and energy savings.

About Los Altos

Los Altos, nestled within the heart of Silicon Valley, embodies a unique blend of small-town allure and modern sophistication. Did you know that Los Altos was originally envisioned as an orchard community, with vast expanses of apricot and plum orchards adorning its landscape? Today, it stands as a testament to its agricultural heritage while embracing its role as a vibrant hub of innovation and creativity. The town's charming downtown area beckons with its quaint boutiques, art galleries, and diverse culinary scene. Notably, the Los Altos History Museum offers a fascinating glimpse into the town's past, celebrating its agricultural roots and technological advancements. Nature enthusiasts are drawn to Los Altos for its proximity to the breathtaking foothills of the Santa Cruz Mountains, providing endless opportunities for outdoor exploration and recreation. Moreover, the town's dynamic arts scene, highlighted by events like the annual Arts & Wine Festival, showcases the wealth of local talent and cultural diversity. Whether strolling through the bustling downtown streets or immersing oneself in the tranquility of nature, Los Altos invites visitors to experience a harmonious blend of past and present, where suburban charm meets urban sophistication.

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47+ Years of Experience

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Pioneers in Green Building Efficiency

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The Biggest & Best Projects in the Bay

Offering a complete range of insulation & fireplaces services

Los Altos's Most Experienced Insulation & Fireplaces Contractor

Spray Foam Insulation
Batt Insulation
Blown Loose Fill Insulation
Residential Insulation Removal
Building Air Sealing
Sound Deadening
Home Performance Testing
Green Building Codes & Efficiency
Electric & Gas Fireplaces
Rockwool Insulation
Rockwool Cavity Rock Insulation
Fireplace Inserts
Blown Cavity Fill Insulation/wall insulation
Blown in Blanket Insulation (BIBS)
Building Air Sealing

Customer Testimonials

"Excellent job from start to finish.  Our project manager, Dennis, did an excellent job addressing our concerns relative to noise and draft.  We followed his advice and are completely satisfied with the results.  The installation team consisted of 3 very capable and delightful young men who did a terrific job.  The guys worked together very well, and they were polite and professional.  The supervisor arrived to put the finishing touches on the job and the fellows cleaned up beautifully. I highly recommend SDI!"

Kathleen Willis

"The workers arrived on time.   They protected the carpet, doors, staircase carefully with thick plastic sheetings from damage by the big rubber hose.    They sucked out the old insulation material from the attic completely and cleaned up the place nicely.   Very polite and professional workers. I would recommend SDI to my friends."

Thomas Lee
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