SDI Insulation, Inc.

4.84 |33 Verified Ratings
Write a Review

SDI Insulation, Inc.

4.84 | 33 Verified Ratings
Write a Review


370 Lang Road
Burlingame, CA 94010
Your use of our services is governed by our Terms & Conditions

SDI Insulation, Inc.

At SDI Insulation, Inc., we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. Call us today!


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Service Area

  • San Jose
  • San Francisco
  • Oakland
  • Berkeley
  • Hayward
  • Richmond
  • Santa Clara
  • Palo Alto
  • Mountain View
  • Novato
  • Petaluma
  • San Mateo
  • San Rafael
  • Redwood City
  • Piedmont
  • Fremont
  • Sunnyvale
  • Daly City
  • Menlo Park
  • Los Gatos
  • Campbell
  • Albany
  • Los Altos
  • San Anselmo
  • Pleasanton
  • San Leandro
  • Fairfax
  • Alameda
  • Redwood Estates
  • Milpitas
  • Sausalito
  • Saratoga
  • Emeryville
  • Greenbrae
  • South San Francisco
  • Cupertino
  • Burlingame
  • Larkspur
  • Mill Valley
  • San Pablo
  • Stanford
  • Holy City
  • San Quentin
  • Castro Valley
  • Corte Madera
  • Morgan Hill
  • San Lorenzo
  • Port Costa
  • Point Reyes Station
  • Woodacre
  • Loma Mar
  • Half Moon Bay
  • Newark
  • Millbrae
  • San Bruno
  • Union City
  • Olema
  • Ross
  • Portola Valley
  • Inverness
  • San Carlos
  • Belmont
  • Dublin
  • Mount Hamilton
  • Pescadero
  • Stinson Beach
  • Lagunitas
  • San Geronimo
  • Belvedere Tiburon
  • Sonoma
  • Canyon
  • Bolinas
  • El Cerrito
  • Montara
  • Atherton
  • Moss Beach
  • Pacifica
  • Sunol
  • Coyote
  • New Almaden
  • Forest Knolls
  • American Canyon
  • San Gregorio
  • Orinda
  • Brisbane
  • Vallejo
  • Alviso
  • Vineburg
  • La Honda
  • El Granada
  • Nicasio
  • Napa
  • See All >

Services Offered

Fireplace & Wood Stoves
  • Batt, Rolled or Reflective Insulation Install
  • Blown-in Insulation Install
  • Spray Foam Insulation Install

Areas of Expertise

  • Insulation
  • Fireplaces
  • Home Energy Audit

Product Brands Used

  • Covestro, Icynene, Havlock Wool, Certainteed , Knauf, Green Fiber, Owens Corning, Helio Power, Regency Fireplaces, Mason Lite.

Quick Facts

Business Hours
(Please call to confirm)
  • Warranty Offered
  • Free Estimates
  • Credit Cards Accepted
  • Bilingual


In Business Since: 1975
Memberships & Affiliations
  • KnaufInsulation
State Licensing
Trade: D-65 Weatherization and Energy Conservation
License #: 607274
Expiration: 11-30-2022
Trade: D-34 Prefabricated Equipment
License #: 607274
Expiration: 11-30-2022
Trade: C-02 Insulation and Acoustical
License #: 607274
Expiration: 11-30-2022
Green Certifications
  • - Certified Green Building Professional
  • - Home Performance with energy Star
  • Green Seal Certification -
  • NAHB - National Association of Home Builders Certified Green Professional
  • Angies List Exemplary Customer Service Award 2015
  • Icynene Gold Circle Exemplary Sales, Service & Innovation Award
  • PG&E Home Upgrade California Customer Service Award 2015
  • Associated Builders and Contractors, Inc.
HomeAdvisor Screened. View Details

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To find more licensing information for your state, visit our Licensing Requirements page.

Business Overview

How We Got Started

We started in this industry in 1970.

We describe our business as Family owned and operated

About The Owner

Steve DeLorenzi is the CEO and President of Bay Area insulation installers SDI Insulation, Inc. His


SDI Insulation, Inc.

My Work
4 Projects
HomeAdvisor: The nation's largest network of screened and rated pros.

Ratings & Reviews
SDI Insulation, Inc.

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 33
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5.0   |  
Review by in Oakland, CA
Joe Stromberg, project manager, is an excellent asset of the company!!! I was also lucky to have two skillful workers who performed the project. I will definitely recommend SDI Insulation if asked to. Luba
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5.0   |  
Great work
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5.0   |  
Clean and neat job. Good price.
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4.5   |  
Review by in Greenbrae, CA
Very clean. They were on time and completed the project very quickly.
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5.0   |  
Review by in San Jose, CA
they are experienced and value for your money
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5.0   |  
Review by in San Mateo, CA
Fast service. Got an appointment within a week. Clean job. Fair price.
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5.0   |  
Review by in Richmond, CA
Project: Install a Brick or Stone Fireplace (Gas)
Have thoroughly enjoyed the attentiveness and professionalism of this company.
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5.0   |  
Review by in San Francisco, CA
Project: Repair a Brick or Stone Fireplace (Gas)
Excellent service. He even added glowing rocks to my fireplace.

1 of 1 users found this review helpful.

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5.0   |  
They were very accommodating and did exactly as I asked for this job.
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5.0   |  
The whole experience was surprisingly pleasant.
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Showing 1-10 of 33
  Page 1 of 4

Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
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