Vented and Unvented Cylinders
Professional supply and installation of both vented cylinders and unvented cylinders
Vented and Unvented Cylinders
Professional supply and installation of both vented cylinders and unvented cylinders
Vented and Unvented Cylinders
Professional supply and installation of both vented cylinders and unvented cylinders
At Boilers24‑7, we specialise in the professional supply and installation of both vented cylinders and unvented cylinders for residential hot water systems. Whether you need a traditional vented hot water cylinder or the high‑pressure performance of an unvented cylinder, our Gas Safe–registered engineers ensure a safe, reliable, and efficient installation tailored to your home’s needs.
Why Choose Vented & Unvented Cylinders?
Consistent Hot Water: Enjoy reliable hot water flow, even during peak demand.
High Pressure Performance (Unvented): Delivers mains pressure for powerful showers and multiple outlets.
Cost‑Effective Solution (Vented): Simple system design with lower equipment cost.
Compact & Versatile: Available in a range of sizes—from 90 litre to 300 litre cylinders.
Regulation & Safety: Compliant with UK building regulations and fitted with all required safety valves and expansion vessels.
Our Service Includes:
Free Site Survey & Consultation
Review of existing plumbing layout, feed and expansion tanks, and system pressure.
Recommendation of the ideal cylinder type (vented vs. unvented) based on your household’s hot water demand.
Expert Cylinder Installation
Supply and fitting of branded cylinders (e.g., Gledhill, Heatrae Sadia, Salamander).
Installation of all ancillary components: pressure relief valves, expansion vessels, immersion heaters, and controls.
System Commissioning
Filling, flushing, and pressure testing to guarantee leak‑free performance.
Calibration of thermostats and immersion heaters for optimum temperature control.
Comprehensive Handover & Support
Demonstration of your new cylinder’s operation and maintenance tips.
Written documentation and manufacturer’s warranty registration.
Types of Cylinders We Install
Vented Cylinders:
Traditional gravity‑fed system with cold feed and expansion tanks.
Ideal for older properties with loft space for header tanks.
Unvented Cylinders:
Direct mains‑fed system for high pressure and rapid delivery.
No need for cold water storage tanks, freeing up loft or cupboard space.
Why Boilers24‑7?
24/7 Booking: Schedule your installation online or by phone at any time.
Gas Safe Registered: Qualified engineers with extensive cylinder‑installation experience.
Transparent Pricing: Fixed‑price quotes—no hidden fees.
Swift Installations: Most cylinder installations completed within one day.
Aftercare & Warranty: Ongoing technical support plus full manufacturer warranties.
Your Trusted Partner for Quality Services
Our customers trust us because we prioritise their needs and deliver results that exceed expectations. Here’s why we’ve earned their confidence:
Proven Track Record
Proven Track Record
Proven Track Record
Commitment to Quality
Commitment to Quality
Commitment to Quality
Transparent Communication
Transparent Communication
Transparent Communication
Safety First
Safety First
Safety First
Testimonials
Testimonials
Testimonials
Hear what our satisfied customers have to say
Hear what our satisfied customers have to say
Hear what our satisfied customers have to say
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
Highly recommend Ryan's services. We're selling our flat, and we needed to get the boiler serviced before we could exchange. Ryan came round at short notice and had the report prepared within a few hours. Really went above and beyond.
Kurt Wood
Homeowner
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Alan Armstrong
Homeowner
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
RJ Williams
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Kurt Wood
Property Manager
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
Olivia Bennett
Master Plumber
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Isabella Carter
Apprentice Plumber
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Kurt Wood
Property Manager
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
Olivia Bennett
Master Plumber
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Isabella Carter
Apprentice Plumber
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Kurt Wood
Property Manager
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
Olivia Bennett
Master Plumber
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Isabella Carter
Apprentice Plumber
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Fiona Joyce
Homeowner
5 out of 5 Rating
We have used Ryan for 3 years now. It's always good to have full trust when someone is working on your boiler in your home. He is knowledgeable, honest, and friendly. We wouldn't use anyone else! Thank you Ryan.
Kurt Wood
Property Manager
5 out of 5 Rating
Completed a pump and valve replacement, and serviced the system. Very pleasant chap who just got on with the job with no fuss. Highly recommended.
Olivia Bennett
Master Plumber
5 out of 5 Rating
Our boiler failed on 22nd December! Our usual boiler firm would not come out at this time. I found Boilers 24-7 on line with doubts like others they would not come out at this time of year. But Ryan came on the Sunday before Xmas within the hour. He established the fault and with the part came back at 8.00am on Xmas Eve to complete the job! What great service and I did not ask for a quote before hand. I expected a heavy bill. Not so - the price charged was so reasonable for call outs at this time. Boilers 24-7 will now be our regular service company.
Isabella Carter
Apprentice Plumber
FAQs
FAQs
FAQs
Your Questions Answered
Your Questions Answered
Your Questions Answered
What services does Boilers24‑7 offer?
We provide a full suite of boiler services, including: Emergency boiler repairs (24/7 response) Annual safety inspections and servicing New boiler installation and replacement Powerflushing and system cleansing Boiler upgrades to high-efficiency models Landlord safety certificates (CP12)
How do I book a boiler service or repair?
What areas do you cover?
Are your engineers certified and insured?
What does an annual boiler service include?
What services does Boilers24‑7 offer?
We provide a full suite of boiler services, including: Emergency boiler repairs (24/7 response) Annual safety inspections and servicing New boiler installation and replacement Powerflushing and system cleansing Boiler upgrades to high-efficiency models Landlord safety certificates (CP12)
How do I book a boiler service or repair?
What areas do you cover?
Are your engineers certified and insured?
What does an annual boiler service include?
What services does Boilers24‑7 offer?
We provide a full suite of boiler services, including: Emergency boiler repairs (24/7 response) Annual safety inspections and servicing New boiler installation and replacement Powerflushing and system cleansing Boiler upgrades to high-efficiency models Landlord safety certificates (CP12)
How do I book a boiler service or repair?
What areas do you cover?
Are your engineers certified and insured?
What does an annual boiler service include?