Our Services


Delivering Outstanding Service Across All Sectors


We provide a high-end service that will give a return on your investment. Our service department ensure a well maintained and trouble free system.


With a proven record in commercial envoronments you can reley on Calstan to meet your demanding timescales and budgets.


We are well versed in the pressures of working in industrial environments. Calstan understand production pressures and environmental factors. 

our services

We Are A Full Mechanical Service Company Operating In A Wide Variety Of Settings.

Calstan provides a range of mechanical services, including quality plumbing and heating, underfloor heating, solar panel systems, air conditioning, ventilation and chlorinations. 

Services for Developers

Calstan provide a full range of mechanical services that will ensure a return developers investment. Your clients are sure to be impressed with the quality of of any work we undertake on your build. We ensure all our workers are fully trained and accredited and no mater what size your developement is our attention to detail and advice are all part of what makes Calstan Mechanical a preferred development partners.

Commercial Services

Calstan Mechanical have a proven record with major commercial contractors. We pride ourselves on the quality of our services, our reliability, and our competitive pricing. Our fully trained, vetted and accredited workforce ensure Calstan meet the demanding timescales and budgets of  our clients. Works we have undertaken include Major London Train Stations,  Schools, New Building Developments, Large Industrial Sites, Bus Stations, Nursing Homes, Office Blocks, Retail Outlets.

Industrial Services

Calstan Mechanical are familiar with working in industrial envoronments and in working with all the extra presures and time constraits that entails. We always make sure we are fully trained and accredited and will be on site and ready to work at times that suit business. 

Commercial Services

Plumbing - wahsroom

Underloor heating

Solar Panel Systems

air con on roof

spar pool

spar pool

spar pool

spar pool

spar pool

Plumbing & Heating

Quality plumbing and heating installed and maintained to the highest domestic and commercial standards.

More Info

Calstan prides itself with some of the highest quality plumbers with a vast range of knowledge for all plumbing and heating needs.

  • Central heating systems
  • Installation upgrades and servicing
  • Power Flushing
  • Gas fitting
  • Bathrooms
  • Showers
  • Kitchens
  • Bespoke and unusual plumbing or heat applications
  • New Build Properties (1st and 2nd Fix)

Calstan is a gas safe registered company.

Underfloor Heating

Specialists in design and installation of underfloor heating that is fully accredited by sloflext.

More Info

Calstan Mechanical specialises in design and installation of underfloor heating services for both private and commercial clients.

  • Underfloor heating is the preferred form of space heating in the UK
  • Increased efficiency and even thermal comfort
  • Controllable and monitorable heat
  • Modern room thermostats
  • Constant ambient temperature throughout & individually for each zone
  • Works in both existing and new construction homes
  • Systems to suit – suspended floors, floating floors, low profile over floor and screed applications

Calstan are accredited Solfex Installer

Solar Panel Systems

Proven Solar Water System installers in both domestic and commercial environments.

More Info

Calstan Mechanical install and maintain solar hot water systems and heat pumps. Using highly skilled and experienced engineers we ensure equipment is installed quickly with minimal disruption.

  • Reduces the need for gas, oil or electric
  • Lowers energy bills
  • Lower carbon footprint
  • provide 60% of hot water requirements
  • work in both sun and cloud diffused sunlight
  • Hot water throughout the year


Calstan are specialty trained to undertake and complete disinfection of water systems (Chlorinations). 

More Info

Calstan Mechanical are specially trained to undertake and complete disinfection of water systems, also known as Chlorinations. We disinfect all of water systems in line with the requirements of the current legislation and approved codes of practice.

Calstan Mechanical can install all sizes of water pipe, be it for a domestic water, commercial building, new install or diversion around a new build.

  • L8 Legionella Risk Assessments / Water Management
  • Chlorinations (Disinfecting water tanks to ACOP L8 / HSG274 Standards)

Air Conditioning

Calstan install, service and maintain heating and cooling systems.

More Info

Calstan has a team of specialised engineers in the installation of heating and ventilation systems. We also undertake all aspects of air conditioning, gas interlock upgrades and cost-effective replacement solutions for air handling units.

Customer driven schedules

When you need us we will be there, with all the supplies and equipment, ready to go at the time agreed.

Satisfaction Guaranteed

We proudly stand by the quality of our workmanship and are happy to back that up with our client after care.

Great client relationships

With one point of contact you can be assured of continuity of command and control on your project.

Development, Commercial or Industrial, no matter what sector, we’ll be there.

Serving your business with ours


Head Office

Unit 4 Christie Place, Bognor Regis,
West Sussex PO22 9RT

Call Us

01243 838207