Setting A New Home Service Standard, One Window At A Time
Standards are slipping…
We at Denni’s feel that the reputation of home service companies has been on a constant decline…
Won’t pick up the phone.
Won’t return your calls.
Don’t show up on time.
Rude, unprofessional.
Mediocre work.
Sound familiar?
That’s where we come in.
We felt it was time to reset the standard for what homeowners can expect of home service companies. At Denni’s, we:
Won’t Always pick up the phone.
Won’t Always return your calls.
Don’t Always show up on time.
Rude, unprofessional. Friendly, polite, professional.
Mediocre Amazing work.
That’s the Denni’s Promise.
Alex Dennison, Owner
What Our Clients Are Saying
What to expect when you work with us
Our Process
Hit the “FREE ESTIMATE” button, fill out the form and let us know what work you’d like us to take off your hands.
Within 24 hours, someone from our team will contact you and set up an in-person estimate.
Our team member will give you a fully detailed quote for all the work to be done.
Sit, back, relax and enjoy your sparkling new home :)
Our Services
What we can do for you
Window Cleaning
Pressure Washing
Deck Staining
Gutter Cleaning
Gutter Guards
Holiday Lighting
Your Home Deserves to Shine — We’ll Make It Happen
At Denni’s Window Cleaning, we believe your property should look its absolute best — year-round. Whether you need streak-free window cleaning, gutter cleaning, pressure washing, or a full deck restoration, we deliver spotless results with unmatched care and professionalism.
Since launching in 2023, we’ve proudly earned 125+ 5-star Google reviews, why?
Unmatched quality & attention to detail
Friendly, respectful technicians
Clear, upfront communication
What makes us different? We show up when we say we will, we treat your property like it’s our own, and we make the process hassle-free.
Our Exterior Cleaning Services
We service Kitchener, Waterloo, Guelph, and surrounding Ontario towns, with professional-grade tools and a commitment to excellence.
✅ Window Cleaning – Inside & out, leaving every pane crystal clear.
✅ Gutter Cleaning & Gutter Guard Installation – Protect your home from costly water damage.
✅ Pressure Washing – Driveways, siding, patios, and more — restored to like-new condition.
✅ Deck Restoration – Strip, clean, refinish and protext your deck for years of enjoyment.
✅ Holiday Light Installation – Beautiful, safe, professional light displays without the ladder work.
Why Choose Denni’s Window Cleaning?
✅ We honour the basics — fast responses, punctual arrivals, and honest communication.
👐 Every window cleaned by hand — no compromises on quality.
🌳 Locally owned and operated — we understand Waterloo’s weather challenges.
🛡️ Fully insured and safety-trained professionals.
📅 Flexible scheduling — from seasonal cleanings to one-off deep cleans.
Areas We Serve
Kitchener
Waterloo
Guelph
Cambridge
Elmira
St. Jacobs
And surrounding towns
Ready to work together?
Give your home the care that it deserves.