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Building Efficiency, Every Day.

With over 47 years of experience, we are the San Francisco Bay Area’s insulation experts and your ultimate resource for Building Efficiency Expertise. Our in-house team of project estimators makes navigating new State and National Green Building Regulations easy. SDI Insulation/Fireplaces will assist you with a cost-effective and sustainable envelope based on the requirements of Title 24.


The Most Sustainable Energy Is Saved Energy

Ready to Build Efficiency with SDI?

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Call now for a FREE estimate!

Big Energy $avings in Every Season

Learn more about rebates on residential insulation upgrades in the Bay Area

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Top Residential, New Construction, and Remodel Insulation Types

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

Warmth & Comfort Solutions: Our Trusted Brands

Your All-in-One Insulation & Fireplaces Solution


SDI Insulation, Inc. is a full-service insulation and home performance contractor serving residential, new construction, remodel, and commercial projects. throughout the San Francisco Bay Area, California. We comprehensively determine the best solution to increase comfort and decrease energy bills.


As an industry leader, SDI Insulation offers a complete line of services designed to reduce energy consumption and costs. Our services include batt insulation, blown insulation, spray foam insulation, residential air sealing, residential insulation removal, and replacement, high-efficiency fireplaces, and inserts.


SDI Insulation strives to stay at the forefront of advancements in sustainable building technology, building science and code requirements. The company partners with LEED-certified manufacturers and can assist in bringing homes up to utility/PG&E codes. SDI Insulation can assist in home energy audits, provides state-of-the-art spray foam and air sealing packages for newly constructed and existing homes, identifies cold spots in homes by using cutting-edge thermal imaging technology, and much more! 

47+ Years of Experience

Pioneers in Green Building Efficiency

The Biggest & Best Projects in the Bay

Offering a complete range of insulation & fireplaces services

The San Francisco Bay Area's Most Experienced Insulation & Fireplaces Contractor

"I've used SDI Insulation on 3 of my projects throughout the years... they never disappoint! They're always on time, their work is superb and have never failed an inspection for their insulation work. I'm in the custom home building industry and it's hard to find a reliable and professional insulation company in the Bay Area. You get what you pay for and SDI is my go to company for quality insulation work. I definitely recommend these guys!"

Mark Howser

"I have used SDI on multiple projects and have never had a problem. From spray foam in a bathroom in Tiburon to fiberglass batt insulation in a crawlspace in Mill Valley."

Matthew Sturm

"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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