Design Build Additions
We have been designing and building quality additions for our customers in the GTA and surrounding area since 1995 with great success.
Get a Free Quote!
Design Build Additions

The process of designing and building an addition can be overwhelming without the help of an experienced, knowledgeable, professional and trustworthy builder. We have been designing and building quality additions for our customers in the GTA and surrounding area since 1995 with great success. Here at Kleen Condition, we offer full turn-key design build services. When working with Kleen Condition, you will have designers, draftsmen, engineers, project managers and trades all underneath one roof working as a team with you to ensure you get a finished product you and your family can be proud of for years to come. We will work with you to create a project plan that will suit your needs. It is important that designers and project managers work together to ensure that what is on paper is within your budget. The key to a good design is the complete understanding of the homeowner’s use of the space. After we take the time to understand the reasoning for adding square footage to your current home we will then try to understand how the space will be used and come to you with suggestions on how to maximize the functionality of your newly designed home.

Our Process


Request a free consultation with our team and learn more about the services we offer.


Select the project you’re interested in as well as the different types of styles for your project.

Technical Walkthrough

We will walk you through our process before we begin the project so you can be better prepared.

Build and Complete

Making your goal into fruition by constructing and completing your project to your liking.

Why Kleen Condition?
Our staff of professionals ensures your project is done right the first time on budget and on time. We answer your questions in a clear, friendly language and work with you throughout the process in order to understand your needs and give you a finished product you can really be proud of. We do all sorts of projects including interior renovations, exterior renovations and design/build services.
  • Drafting of plans
  • Engineering
  • Procurement of permits
  • Construction and project management
  • Interior decorating
  • Excavation
  • Foundations
  • Footings
  • Framing
  • Roofing
  • Mechanical
  • Exterior finishing
  • Interior finishing
  • Landscaping
  • And much more!
Ready to get started?
If you’re looking to transform your home, then give us a call. One of our representatives will be more than happy to come out and offer suggestions as well as provide you with a free estimate. We will answer your questions in clear friendly language with no obligation.
About Kleen Condition
Kleen Condition is an industry leader in construction services, mold and asbestos removal. Having completed thousands of residential and commercial projects, we have earned the trust and confidence of loyal customers throughout Southwestern Ontario.
There are well-defined standards, procedures and precautions that must be adhered to during this type of work. We follow IICRC protocols for water and sewage damage and strictly follow Ontario Regulation 278/05 for all our asbestos removal projects. Our highly-trained specialists are certified and insured to provide authoritative confirmation of mold remediation and asbestos abatement.

Why Choose Kleen Condition?

As industry leaders, we have earned the trust and confidence of our loyal customers. Below are some reasons why we’re Southwestern Ontario’s most reliable source for mold remediation and asbestos removal:
Why choose us - Prices

Fair Prices & Great Value

Our prices are fair and competitive and our services address your specific needs. We offer a free quote to customers throughout Southwestern Ontario.

Why choose us - Certified-Inspectors

Certified Inspectors

Our inspectors and workers are certified through specialized training to safely remove mold or asbestos.

Why choose us - Commercial-Residential

Commercial & Residential Expertise

Since 1989, we have successfully completed over 4,000 projects of varying size, scale and difficulty. We are set up for any size of the project required.

Why choose us - Neighborhood

We’re in Your Neighbourhood

With locations across the GTHA, Kleen Condition is able to respond quickly and thoroughly to projects throughout Southern Ontario. We’re ready when you are!


Get Connected

Feel free to send us any questions or details you may have concerning our services and company and we'll be more than happy to get back to you.


2-129 Symington,
Toronto, ON M6P 3W3

Phone: (416) 919-2093


55 Elm Drive West, Unit 511,
Mississauga, ON L5B 3Z3

Phone: (647) 699-9803


8550 Torbram Road, Unit 10,
Brampton, ON L5T 0H7

Phone: (905) 488-0298


8-9251 Yonge Street,
Richmond Hill, ON L4C 9T3

Phone: (647) 499-5690