Residential Backflow Prevention Services in Chilliwack & the Lower Mainland
Protect your home’s drinking water with certified backflow testing, installation, and repairs — keeping your family safe and fully compliant with local BC regulations.
Book Your Backflow Test or Home Safety Inspection
Residential Backflow Prevention Services in Chilliwack & the Lower Mainland
Protect your home’s drinking water with certified backflow testing, installation, and repairs — keeping your family safe and fully compliant with local BC regulations.
Book Your Backflow Test or Home Safety Inspection
Backflow can allow contaminants like bacteria, chemicals, irrigation water, or debris to enter your home’s drinking water. Our certified technicians inspect, install, test, and repair residential backflow prevention devices to keep your water clean and safe.
Protect your family, your plumbing, and your drinking water.
Protect your family, your plumbing, and your drinking water.
Protect your family, your plumbing, and your drinking water.
Why Homeowners Need Backflow Protection
Backflow happens when water pressure reverses and contaminated water flows back into your clean water lines. This can come from:
Sprinkler/irrigation systems
Garden hoses
Pools or hot tubs
Boil water events
Pressure changes in city mains
Many BC municipalities require backflow prevention on certain home systems, especially irrigation lines.
Why Homeowners Choose Cohesive Mechanical
Certified Backflow Technicians - Licensed, insured, and cross-connection certified.
Fast Annual Testing - Keep your home compliant with municipal requirements.
Irrigation System Specialists - Install and test outdoor backflow devices for safe watering.
Repairs & Replacements - We fix or replace failing devices on the spot.
We Handle the Paperwork - Test forms submitted directly to your city so you stay compliant with zero hassle.
Our Residential Backflow Services
1. Annual Backflow Testing & Certification
Required by many municipalities. We test your device using calibrated equipment and submit all certification forms on your behalf.
2. Backflow Device Installation
We install CSA-approved devices for:
Lawn irrigation systems
Outdoor hose bibs
Pools & hot tubs
Water filtration systems
Home additions or renovations requiring new water lines
3. Backflow Device Repair
If a test shows reduced performance or a failed check valve, we repair or replace it quickly to restore protection.
4. Cross-Connection Home Inspections
We inspect your whole home’s plumbing to identify risks and ensure full compliance with BC plumbing codes.
What We Use
CSA-Approved Residential Backflow Devices - (PVB, DCVA, and RP assemblies).
Calibrated Testing Kits - Required for accurate and accepted certification.
High-Quality Valves & Fittings - Designed specifically for residential outdoor systems.
Benefits for Homeowners
Protect Your Drinking Water - Stop contaminants from entering your home’s tap water.
Stay Compliant With BC Requirements - Avoid fines or service interruptions.
Health & Safety Peace of Mind - Safe water for cooking, drinking, and bathing.
Reliable Irrigation & Outdoor Systems - Prevent dirty water from backflowing into your home.
No Hassle Certification - We test, record, and submit everything for you.
Why Homeowners Need Backflow Protection
Backflow happens when water pressure reverses and contaminated water flows back into your clean water lines. This can come from:
Sprinkler/irrigation systems
Garden hoses
Pools or hot tubs
Boil water events
Pressure changes in city mains
Many BC municipalities require backflow prevention on certain home systems, especially irrigation lines.
Why Homeowners Choose Cohesive Mechanical
Certified Backflow Technicians - Licensed, insured, and cross-connection certified.
Fast Annual Testing - Keep your home compliant with municipal requirements.
Irrigation System Specialists - Install and test outdoor backflow devices for safe watering.
Repairs & Replacements - We fix or replace failing devices on the spot.
We Handle the Paperwork - Test forms submitted directly to your city so you stay compliant with zero hassle.
Our Residential Backflow Services
1. Annual Backflow Testing & Certification
Required by many municipalities. We test your device using calibrated equipment and submit all certification forms on your behalf.
2. Backflow Device Installation
We install CSA-approved devices for:
Lawn irrigation systems
Outdoor hose bibs
Pools & hot tubs
Water filtration systems
Home additions or renovations requiring new water lines
3. Backflow Device Repair
If a test shows reduced performance or a failed check valve, we repair or replace it quickly to restore protection.
4. Cross-Connection Home Inspections
We inspect your whole home’s plumbing to identify risks and ensure full compliance with BC plumbing codes.
What We Use
CSA-Approved Residential Backflow Devices - (PVB, DCVA, and RP assemblies).
Calibrated Testing Kits - Required for accurate and accepted certification.
High-Quality Valves & Fittings - Designed specifically for residential outdoor systems.
Benefits for Homeowners
Protect Your Drinking Water - Stop contaminants from entering your home’s tap water.
Stay Compliant With BC Requirements - Avoid fines or service interruptions.
Health & Safety Peace of Mind - Safe water for cooking, drinking, and bathing.
Reliable Irrigation & Outdoor Systems - Prevent dirty water from backflowing into your home.
No Hassle Certification - We test, record, and submit everything for you.
Why Homeowners Need Backflow Protection
Backflow happens when water pressure reverses and contaminated water flows back into your clean water lines. This can come from:
Sprinkler/irrigation systems
Garden hoses
Pools or hot tubs
Boil water events
Pressure changes in city mains
Many BC municipalities require backflow prevention on certain home systems, especially irrigation lines.
Why Homeowners Choose Cohesive Mechanical
Certified Backflow Technicians - Licensed, insured, and cross-connection certified.
Fast Annual Testing - Keep your home compliant with municipal requirements.
Irrigation System Specialists - Install and test outdoor backflow devices for safe watering.
Repairs & Replacements - We fix or replace failing devices on the spot.
We Handle the Paperwork - Test forms submitted directly to your city so you stay compliant with zero hassle.
Our Residential Backflow Services
1. Annual Backflow Testing & Certification
Required by many municipalities. We test your device using calibrated equipment and submit all certification forms on your behalf.
2. Backflow Device Installation
We install CSA-approved devices for:
Lawn irrigation systems
Outdoor hose bibs
Pools & hot tubs
Water filtration systems
Home additions or renovations requiring new water lines
3. Backflow Device Repair
If a test shows reduced performance or a failed check valve, we repair or replace it quickly to restore protection.
4. Cross-Connection Home Inspections
We inspect your whole home’s plumbing to identify risks and ensure full compliance with BC plumbing codes.
What We Use
CSA-Approved Residential Backflow Devices - (PVB, DCVA, and RP assemblies).
Calibrated Testing Kits - Required for accurate and accepted certification.
High-Quality Valves & Fittings - Designed specifically for residential outdoor systems.
Benefits for Homeowners
Protect Your Drinking Water - Stop contaminants from entering your home’s tap water.
Stay Compliant With BC Requirements - Avoid fines or service interruptions.
Health & Safety Peace of Mind - Safe water for cooking, drinking, and bathing.
Reliable Irrigation & Outdoor Systems - Prevent dirty water from backflowing into your home.
No Hassle Certification - We test, record, and submit everything for you.
FAQs
What is backflow, and why is it dangerous?
Backflow occurs when water flows in the wrong direction, potentially pulling contaminants into your home’s drinking water. This can include bacteria, fertilizers, and chemicals.
Do I really need a backflow prevention device for my home?
Most homeowners need one if they have:
An irrigation system
A pool or hot tub
A home water filtration system
A boiler or hydronic heating system
Many BC cities require annual testing for these devices.
How often should I test a backflow device?
Once per year, or anytime it’s repaired or replaced.
How long does backflow testing take?
Most tests take 20–30 minutes.
What happens if my device fails testing?
We can repair or replace the device during the same visit in most cases.
Are your technicians certified?
Yes. All backflow services are performed by certified cross-connection control specialists licensed in BC.
FAQs
What is backflow, and why is it dangerous?
Backflow occurs when water flows in the wrong direction, potentially pulling contaminants into your home’s drinking water. This can include bacteria, fertilizers, and chemicals.
Do I really need a backflow prevention device for my home?
Most homeowners need one if they have:
An irrigation system
A pool or hot tub
A home water filtration system
A boiler or hydronic heating system
Many BC cities require annual testing for these devices.
How often should I test a backflow device?
Once per year, or anytime it’s repaired or replaced.
How long does backflow testing take?
Most tests take 20–30 minutes.
What happens if my device fails testing?
We can repair or replace the device during the same visit in most cases.
Are your technicians certified?
Yes. All backflow services are performed by certified cross-connection control specialists licensed in BC.
FAQs
What is backflow, and why is it dangerous?
Backflow occurs when water flows in the wrong direction, potentially pulling contaminants into your home’s drinking water. This can include bacteria, fertilizers, and chemicals.
Do I really need a backflow prevention device for my home?
Most homeowners need one if they have:
An irrigation system
A pool or hot tub
A home water filtration system
A boiler or hydronic heating system
Many BC cities require annual testing for these devices.
How often should I test a backflow device?
Once per year, or anytime it’s repaired or replaced.
How long does backflow testing take?
Most tests take 20–30 minutes.
What happens if my device fails testing?
We can repair or replace the device during the same visit in most cases.
Are your technicians certified?
Yes. All backflow services are performed by certified cross-connection control specialists licensed in BC.
Schedule certified backflow testing or installation today.
Schedule certified backflow testing or installation today.
(Serving Chilliwack, Abbotsford, Agassiz, and the Fraser Valley)
(Serving Chilliwack, Abbotsford, Agassiz, and the Fraser Valley)
Other Services
Other services we offer
Other Services
Other services we offer
Other Services
Other services we offer
Contact Us Today
Give your home or business the preventative maintenance that it deserves. Cohesive Mechanical is here to help with all your plumbing and HVAC needs, so your space stays comfortable and efficient year-round.
Contact Us Today
Give your home or business the preventative maintenance that it deserves. Cohesive Mechanical is here to help with all your plumbing and HVAC needs, so your space stays comfortable and efficient year-round.
Contact Us Today
Give your home or business the preventative maintenance that it deserves. Cohesive Mechanical is here to help with all your plumbing and HVAC needs, so your space stays comfortable and efficient year-round.