top of page
Const sign 2 (4).jpg

Who we are!

RES Construction was founded in 1985 and has 38 years of diversified construction experience in the residential, commercial and industrial fields. We prioritize both client satisfaction and the highest level of craftsmanship.

Ralph Schonian, our founder and project manager, has been a licensed contractor since 1985. Over the last three decades, he has developed the reputation of producing only the finest quality of projects. Ralph’s hands-on approach and personalized attention to detail ensures a quality project.

RES Construction believes that the key to a successful project begins by listening to our client’s unique needs and desires.  In order to ensure quality service, we provide consistent communication with our customers throughout the entire project. Additionally, every successful project involves having a positive rapport and maintaining good communication with each professional affiliated with the job. 

We are committed to meeting and protecting the budgets of our clients by providing a detailed cost analysis and progressive job costing throughout the project.


Image by Josh Olalde
Building Plans
Modern Kitchen in Workspace


  • Custom Homes

  • Room additions

  • Remodeling

  • ADU's & detached structures

  • Outdoor living spaces


  • Design, plans & engineering

  • Detailed Estimate with cost line items

  • Contract with detailed scope of work

  • Construction schedule

Commercial/Industrial tenant improvements

  • Industrial - food facilities

  • Industrial machine shops

  • Commercial buildings

  • Commercial tenant improvements

  • Commercial Kitchen specialist


My Recent Work


Custom Craftsman Home


Gray residence

Lap pool room




Kitchen addition/Expansion


Kitchen remodel

Outdoor living area

Patio good 1IMG_4250 (2).JPG

Industrial Tenant Improvement

WS pic kitchen 1.JPG

Entire house remodel


Detached garage for car collection

Why hire us!

Exquisite craftsmanship begins with extensive planning, commitment, and attention paid to every detail. RES Construction can guarantee unparalleled excellence, provided to each of our clients by strictly monitoring quality from start to finish.
RES Construction has earned its reputation as a premiere building Contractor that provides quality service and projects, not only based upon our construction experience, but due to the high-levels of customer satisfaction experienced by clients throughout the process. We are a company of integrity and dedication, tailoring each project to meet the unique needs of each individual client.
What we provide:
•    We listen to your wants and desires, implementing them into a design that meets your lifestyle and personality.
Estimate and agreement:  
•    A fixed cost Estimate, so you can maximize your investment
•    An estimate with a complete itemized cost breakdown
•    A “Scope of Work” - a detailed description of the cost breakdown line items and the exact materials and products to be used
•    Approved state of California contract agreement
•    Insurance certificates

•    Working drawings (Plans) and Engineering
•    Material and product sourcing
•    Construction schedule with a completion date

•    Professional constant supervision with strict quality control
•    Project management
•    Uncompromised quality & Craftsmanship
•    A very clean and safe job site

•    Turn Key project delivered on time
•    Warranty and follow up service

Past Projects

  • New Custom & Luxury homes

  • Complete high end home remodels

  • Complete renovations

  • Kitchen remodels & expansions

  • Room additions 

  • Outdoor Living Spaces

  • Food manufacturing facility - Next Proteins

  • Aero Space manufacturing plant – Dow Hydraulic Systems

  • Restaurant tenant improvements - Several Chinese Buffet restaurants

  • Medical Office buildings from the ground up

  • Commercial tenant improvements

  • Commercial Kitchen specialist

  • Seismic retrofits for Historical buildings - Padua hills Theater

  • Industrial tenant improvements - Valley Tool

Contact Me

1330 Monte Vista Ave 

Unit #1

Upland, Ca. 91786


Thanks for submitting!

Image by Kenny Eliason

General Contractor in Upland, Ca.
Remodeling Contractor in Upland, Ca.
Tenant Improvement contractor in La Verne, Ca.
Room additions in Alta Loma, Ca.
General Contractor in Glendora, Ca.
Manufacturing facilities in Ontario, Ca.
Industrial remodeling in Rancho Cucamonga, Ca.
Outdoor Living space contractor in San Dimas, Ca. 

bottom of page