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Top-Rated Architects/engineers in Signal Hill - Updated Nov 2026

Avatar for PETER T ERDELYI & ASSOCIATES INC
PETER T ERDELYI & ASSOCIATES INC
4.8(
12
)
Draftsperson/CADDArchitect

Serving Signal Hill, CA and surrounding areas

Approved

In business since 1976

Warranties offered

Credit card accepted

Whether you're upgrading an existing structure or building from the ground up, Peter T. Erdelyi & Associates, Inc has the expertise to oversee your project through completion. We have designed more than 10,000 structures in the Los Angeles area over the past four decades; from apartment buildings to new single family homes to additions and remodels both for residential and commercial clients. Our team of professional engineers, drafters, expeditors and project staff will deliver plans that withstand the test of time.

Beverly Hills
Pacific Palisades
Culver City
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for TY Engineering and Design, Inc.
TY Engineering and Design, Inc.
4.5(
86
)
Engineer - Structural

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"Tolga was very professional and far exceeded our expectations. He drew up our structural plans very quickly and was easy to reach whenever we had questions. I would highly recommend TY Engineering to anyone looking for a structural engineer, and if I need one in the future they will be the first I call."
Response time1 day
Recommended by96%of homeowners
Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Engineer - Structural

Serving Signal Hill, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+323

Response time10 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for Drafting Design Services
Drafting Design Services
4.8(
18
)
Draftsperson/CADD

Serving Signal Hill, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Credit card accepted

Offers commercial services

"If you?re here looking for an architect, look no further. Francisco is the man for the job. He helped us with a garage to ADU conversion. Francisco kept us informed and communicated with us throughout the entire project. He was very professional, helpful and patient. We had tons of questions and he had the answers. He is very efficient and great at his job. We would hire him again with no hesitation. Thank you Francisco for making for making this process a breeze!"
Response time2 days
3 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for GWC Design Architects
GWC Design Architects
5.0(
4
)
Draftsperson/CADDArchitect

Serving Signal Hill, CA and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

From childhood, Gerald was passionate about architecture, designing and building models. With 30 years of experience, he has worked on over 1200 custom residential units (single-family homes, condominiums, and apartments) and over 100 commercial, retail, restaurant, or office building projects, totaling over 2.5 million square feet. Contact him for your next design project.

LOMITA OFFICE BLDG.
LOMITA OFFICE BLDG.
CARMELITA RESIDENCE
CARMELITA RESIDENCE
McCARROL RESIDENCE

+5

5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for RCS Engineering Services
RCS Engineering Services
5.0(
3
)
ArchitectEngineer - Structural

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2018

Offers commercial services

Customers say: Quick response

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

Slab On Grade - Carport
Foundation Underpinning
Existing Wall
Existing Wall/ Form Work
FOundation Underpinning

+15

Response time8 hrs
Recommended by100%of homeowners
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