Fast, reliable boiler repairs from Gas Safe registered engineers.
Same-day response available — call us now or book online.
A broken boiler is stressful — especially when it's cold. We offer rapid response boiler repairs across Derbyshire and Nottinghamshire, with same-day callouts available when you need us most.
Our experienced Gas Safe registered engineers diagnose the problem quickly, explain what's wrong in plain English, and fix it there and then wherever possible. No jargon, no unnecessary upselling — just honest, reliable repairs.
If it turns out your boiler is beyond repair, we'll tell you straight and talk you through your replacement options with no pressure.
Book a Repair
Experienced With Every Issue
Your boiler fires up but nothing happens? It could be a faulty diverter valve, thermostat issue, or ignition failure. We diagnose the root cause and get your heating and hot water back on.
If your boiler keeps dropping pressure, there may be a leak in the system, a faulty pressure relief valve, or you may have recently bled your radiators. We find the cause and fix it properly.
Banging, whistling, kettling, or gurgling sounds usually mean trapped air, limescale buildup, or a failing pump. We'll identify the noise and resolve it so your boiler runs quietly again.
Water around your boiler could be coming from a corroded pipe, faulty valve, or the boiler itself. We'll locate the leak, repair or replace the affected parts, and check for further damage.
A pilot light that won't stay lit is often caused by a faulty thermocouple, draught, or gas supply issue. Our Gas Safe engineers will safely diagnose and fix the problem.
Modern boilers display fault codes when something goes wrong. If your boiler has locked out or is flashing an error, we can read the code, diagnose the fault, and get it running again.
Not sure what's wrong? Don't worry — just give us a call on 01773 424563 and we'll talk you through it.
Honest Advice, Every Time
We'll always try to repair your boiler first — we'll never push you into buying a new one if a fix makes more sense. But sometimes a replacement is the better long-term option.
Not sure which makes sense for you? We'll give you an honest assessment after diagnosing the problem — no pressure, no sales pitch.
Servicing
£96 per job
A routine safety and performance check of a gas boiler to ensure it is operating safely and efficiently. This preventative maintenance helps identify potential issues before they become major faults.
Book a Boiler ServiceFrom Baxi to Worcester Bosch, we service and repair all major boiler brands. Whatever make or model you have, we can help.
How It Works
Tell us the problem. We'll aim to book you in the same day where possible.
Our engineer visits, diagnoses the fault, and explains your options clearly.
We carry out the repair there and then wherever possible. No dragging it out.
All repairs are guaranteed. If the problem comes back, so do we.
At KAS Energy, we're committed to delivering reliable, high-quality heating & plumbing services across Derbyshire & Nottinghamshire. Here's why homeowners choose us with confidence:
Quick, dependable service when you need it most—no long waits.
Gas Safe registered professionals with 20+ years hands-on expertise.
Spread the cost with flexible payment plans.
Trusted by 315+ local customers for reliability, professionalism, and results.
WHAT OUR CUSTOMERS SAY
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"The KAS representative physically attended to survey the house and old boiler, checking water flow rate etc before leaving a written quote at the end of the visit. The quote was very competitive compared to another local company and an online franchise. Kim speedily replied to a lot of my queries and provided other quotes on different boilers without pressuring me to make a speedy decision. This particular project required replacing two Combi boilers in the property. In fact the engineer who arrived on time, Alex, was so competent and knowledgeable about the boilers I had chosen that he fitted both boilers on the same day. The work was carried out to a neat high standard. On completion the house was left as clean and tidy as when Alex arrived. Would highly recommend this company."
"YOU WANT A BOILER Fitting KAS are the Number 1. KAS Energy Plumbing and Heating, Alfreton, Derbyshire yesterday installed a new Worcester Bosch wall boiler. They were on time, gave me and my wife full details of what we were looking for and measured up for installation. We were sent a full breakdown of the price and how long it would take. We had got other prices from other companies but they bettered that and gave us an extra 5 years free service cover and an extra 5 years cover on the Worcester Boiler. They turned up on time, carried out all the work leaving no mess. They are fully approved Gas Safe, plumbing and electrical. Brilliant 100%."
"Very professional service from KAS. Competent plumber fitted the boiler in a day and explained how to operate in an understandable language. He was very tidy and the price from KAS was very competitive. I would have no reservations about recommending this company."
"Really happy with the service received from KAS Energy, excellent communication and they were able to book me in quickly. Sam replaced my old boiler and was very efficient and professional. I would recommend KAS Energy to anyone and will be using again in the future."
"Sam was very polite and professional. The work was completed and Kimberley kept us up to date with appointment times, availability and documentation. The price was competitive. Overall we're really happy with the work and will be saving their number for the future."
"I can confirm that they have excellent Knowledge, Attitude & Skills (KAS). I am very happy and relieved to have a Combi boiler installed perfectly with good finish, replacing an old heater boiler and placing it where the old cylinder was."
"I've had a brilliant experience with Kas Energy Plumbing and Heating. My mums boiler had stopped working so I messaged them and I got an immediate response, they came out the same day and got the boiler working again. Work was done at a fair price. So refreshing to find a company that offer this level of customer service."
"We have used KAS Energy Plumbing and Heating on several occasions and have never been let down. They have installed Underfloor Heating, carried out Boiler Repairs and installed replacement radiators. The communication was always good and the end product first class. We wouldn't use anyone else."
"I had a new boiler installed last June by Sam, and I've just recently had the boiler serviced for the 1st time since installation, would recommend, great service provided!"
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Where We Work
Based in Alfreton, we cover a wide area across Derbyshire and Nottinghamshire.
We're local, which means fast response times and quick arrival when you need us. No long waits, no chasing — just reliable service from a team that's right on your doorstep.
Not sure if we cover your area?
Contact us to check!
Same-day response available across Derbyshire and Nottinghamshire. Call us now and we'll get it sorted.
Get In Touch
Ready to get started? Contact us for a free, no-obligation quote. We're here to help with all your plumbing and heating needs across Derbyshire & Nottinghamshire.
Phone
01773 424563Address
Genesis Centre, Office 15,
King St, Alfreton, DE55 7DQ
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