NK Gas Services
Keep your boiler safe, efficient and warranty-compliant with our comprehensive annual service. Includes Gas Safety Certificate (CP12) and full written report.
A thorough inspection and maintenance check to keep your boiler running safely
Detect carbon monoxide risks and gas leaks before they become dangerous
Most manufacturers require annual servicing to maintain your warranty
An efficient boiler uses less gas — lower energy bills every month
Catch small issues before they become costly emergency repairs
Don't wait for a breakdown. Look out for these warning signs that your boiler is overdue for a service.
Should be blue – yellow indicates incomplete combustion and potential CO risk
Could indicate sludge buildup or circulation issues needing attention
Frequent pressure loss suggests a leak or valve problem worth investigating
An inefficient boiler uses more gas to produce the same heat output
Annual servicing keeps your warranty valid and your boiler safe
Kettling, banging or gurgling sounds need investigation by a Gas Safe engineer
Factory-trained on all major manufacturers
"I've been servicing boilers across the West Midlands since 2014. Every service I do is thorough — I check everything from combustion readings to safety devices. If I spot an issue, I'll explain it clearly and give you honest advice. Most services take 45-60 minutes, and you'll get your CP12 certificate on the spot."
★★★★★ 5.0 from 147 Google reviews
Excellent service, quick, professional and reasonably priced. Call these guys first. Thank you Nik.
Found NK gas service through Google Chrome. Contact was easy and updates to date of gas service were regular. Nick was very thorough and professional.
Excellent service by Nick! I'll be a repeat customer. Sorted out an appointment promptly, professional and great work ethic. Very competitive pricing.
Same-day appointments available across West Midlands
Gas Safe #568305 ▪ CP12 Included ▪ 147+ 5-Star Reviews
Last updated: January 2026 ▪ Verified Gas Safe registered