Call Now
Website
Call
Business Details
25 Years
experience
Your Trusted Heating Experts in Diss
Mark Joy Plumbing & Heating has been delivering professional heating solutions since 2001, serving Diss and surrounding areas with expertise in gas, oil, and renewable energy systems. Our Gas Safe registered engineers combine over 30 years of industry experience with local knowledge to provide tailored installations and maintenance services. We specialise in traditional central heating systems alongside modern renewable technologies including ground source heat pumps and solar thermal systems. All work is guaranteed for a year, supported by MCS accreditation and Part P Building Regulations certification.

Our commitment to quality extends to commercial projects for schools, churches, and public buildings, ensuring clean installations with minimal disruption. We prioritise customer satisfaction through competitive pricing, no call-out charges, and a no-fuss policy that consistently exceeds client expectations. Backed by testimonials from satisfied clients like The Church of St Henry Morse, our reputation for reliability and after-sales service remains our strongest asset.
Services
Gas systems Oil systems Underfloor heating Boiler replacement Heat pumps Solar thermal Rainwater harvesting Landlord checks System maintenance Renewable energy
Details
  • Year established: 2001
Highlights and features
  • 30+ years' experience in heating installations
  • Local service with no call-out charges
  • Gas Safe and MCS accredited engineers
  • Year-long guarantee on all work
  • Proven commercial project expertise
Associations and certifications
  • Gas Safe Register
  • MCS
  • Part P Building Regulations
What people say
Entirely satisfied After sales service experienced Peace of mind No job too big Proven track record
Services
Gas systems
Professional installation and maintenance of gas central heating systems using high-quality components. Our Gas Safe registered engineers ensure safe, efficient operation while complying with UK regulations. Ideal for domestic properties seeking reliable heating solutions with minimal environmental impact.
Oil systems
Specialist oil-fired heating system installations and servicing for properties without mains gas access. We provide efficient boilers and storage solutions tailored to rural homes and commercial buildings across Norfolk and Suffolk.
Renewable energy
MCS-accredited renewable energy solutions including air/ground source heat pumps and solar thermal systems. Designed to reduce carbon emissions while qualifying for government incentives through our certified installation process.
Underfloor heating
Low-temperature underfloor heating systems for new builds and renovations. Provides even heat distribution with energy-efficient operation, compatible with both traditional and renewable energy sources.
Boiler replacement
Efficient boiler replacement service using high-efficiency models that save energy and reduce bills. Completed quickly with minimal disruption, including system flushing and safe waste disposal as standard.
People
Mark Joy
Owner
With over 30 years in the building industry, Mark specialises in heating solutions from traditional gas systems to renewable technologies. MCS accredited and committed to quality installations across domestic and commercial sectors since 2001.
Questions
What heating services do you offer?
We install and maintain gas, oil, and renewable systems including boilers, underfloor heating, heat pumps, and solar thermal solutions for domestic and commercial properties.
Are your engineers certified?
Yes, we're Gas Safe registered, MCS accredited, and Part P certified, ensuring all work meets UK safety and building regulations.
Do you provide guarantees?
All installations come with a 12-month guarantee covering both parts and labour for complete customer confidence.
Can you help with renewable energy incentives?
As MCS accredited installers, we assist with applications for local authority grants and renewable energy incentives.
What areas do you cover?
We serve Diss, Eye, and surrounding areas across North Suffolk and South Norfolk with no call-out charges.