Business Details
Custom Sunrooms & Home Additions in Southern Ontario
Designer Sunrooms & Additions has been dedicated to transforming residential spaces since 1972, offering comprehensive solutions for sunrooms, home additions, decks, and outdoor living structures. Our team specializes in navigating municipal regulations, including zoning variances and Ontario Municipal Board appeals, ensuring seamless project execution. With decades of combined experience, we prioritize quality craftsmanship and client satisfaction, handling every phase from design and permitting to construction. Our service area spans Southern Ontario, including Hamilton, Burlington, Oakville, Mississauga, and Grimsby. We pride ourselves on using premium materials that meet industry standards while delivering energy-efficient, durable spaces tailored to client needs.Our founder, John Witten, brings extensive expertise as a former vice president of the Hamilton-Halton Home Builders Association and founding member of SAWDAC, ensuring every project reflects industry-leading practices. We offer free consultations to assess project feasibility and provide transparent, hassle-free service, as evidenced by client testimonials praising our professionalism and attention to detail. Our commitment to excellence is reinforced through certifications from leading sunroom manufacturers and active involvement in local business communities like the Burlington Chamber of Commerce. By focusing on personalized solutions and maintaining clean, organized worksites, we aim to exceed client expectations while enhancing property value and livability.
Services
Sunrooms
Home Additions
Patio Covers
Decks
Movable Walls
Highlights and features
- We have over 50 years of combined experience in residential construction.
- Our team handles zoning variances and OMB appeals with expertise.
- We use premium-grade materials meeting energy efficiency standards.
- We offer free consultations to assess project feasibility.
- We serve Hamilton, Burlington, Oakville, and surrounding Southern Ontario areas.
Associations and certifications
- SAWDAC (Sliding and Window Dealers Association of Canada)
- Hamilton-Halton Home Builders Association
- Burlington Chamber of Commerce
- Better Living Patio Rooms
- Temo Sunrooms
- Sunspace Sunrooms
What people say
Beautiful room
Kept the worksite clean
Enhanced our lives
Perfect light for painting
Exceeded expectations
Services
Sunrooms
Custom sunrooms designed to flood spaces with natural light while maintaining energy efficiency. We use premium-grade glass panels and durable framing to create year-round comfortable environments. Our team ensures structural integrity and compliance with local building codes.
Home Additions
Full-service home additions including kitchens, family rooms, and great rooms. We manage zoning variances, permits, and construction to expand living spaces seamlessly. Projects are completed with minimal disruption to homeowners.
Decks
Durable, aesthetically designed decks tailored to backyard layouts. We handle material selection, permitting, and installation, ensuring safe, low-maintenance outdoor living areas. Custom features include steps and integrated seating.
Patio Covers
Functional patio covers that protect against weather while enhancing outdoor usability. Constructed with high-quality materials, our covers provide shade and durability, ideal for entertaining or relaxation.
Movable Walls
Adaptable wall systems for dynamic space management. These walls allow homeowners to reconfigure rooms quickly, optimizing layouts for different needs without permanent structural changes.
People
John Witten
Owner
John Witten founded Designer Sunrooms & Additions with a focus on quality home improvements. With 50+ years in the industry, he previously managed a sunroom division and held leadership roles in SAWDAC and the Hamilton-Halton Home Builders Association.
Questions
What areas do you serve?
We serve Hamilton, Burlington, Oakville, Mississauga, Grimsby, and surrounding areas in Southern Ontario.
Do you handle permits and zoning issues?
Yes, we manage zoning variances, minor variance applications, and Ontario Municipal Board appeals as part of our service.
What materials do you use?
We use premium-grade glass panels, energy-efficient materials, and durable construction components certified by manufacturers like Temo Sunrooms and Sunspace.
Can you build custom designs?
Yes, we offer fully customized sunrooms, decks, and additions tailored to your home's architecture and personal preferences.
How long does a typical project take?
Project timelines vary by scope, but we prioritize efficient completion while maintaining quality and compliance with all regulations.
