Two insulated stainless steel stacks on a flat roof, with the horizontal flue runs and support plates

Services

Industrial chimneys and stacks. Designed, fabricated, lifted, tested.

Freestanding masts, guyed stacks and replacement chimneys for biomass, crematoria and process plant. For M&E contractors, main contractors and consultants.

  • Supply only
  • Install only
  • Supply and install
Price back from drawings or survey
10hrs
Survey within a week of order
3days
Calcs and CAD drawings after survey
25min
Job-specific RAMS
Sameday
Order to install, faster when urgent
2 to 2weeks

Normal turnarounds. Every job has a Grün project manager on site. Daily photo progress reports during the install. Handover documents normally in your project folder before the engineers get home.

To price it

What we need from you to price it.

Drawings, photos or an outline is enough to start. We price from that or arrange a survey.

  • Appliance type and number
  • Output in kW or kVA
  • Spigot or outlet size
  • Approximate vertical and horizontal lengths
  • New flue or existing chimney
  • Termination
  • Site location

What's in the package

Chimney, structure, lift and handover.

The exhaust duty, the chimney structure, the supports, the access and the installation sequence, priced and drawn as one package.

Supply only, install only, or supply and install. Commercial and industrial only, no minimum job size.

  • Freestanding chimneys and stacks
  • Guyed stacks and masts
  • Replacement of existing chimneys
  • Fabricated steel chimney sections
  • Insulation and cladding
  • Base, inspection and drain details
  • Cranage and lifting plans
  • Calculations, drawings and submittals

The engineering

A 30 metre replacement chimney, drawn before it is built.

Nortex Mill, Bolton. The existing guyed chimney comes down to ground level and a new fabricated steel chimney goes up in three sections. Contract awarded, dates being coordinated.

Elevation of the 30 metre replacement chimney with guy band, three guys, joints and base plate
Design drawing 4149-001 P5, 30 September 2026. A design issue, not an as-built record. Tap a numbered point to see where it is on the drawing.
  1. Design and calculations ↗

On site

Lifts, roofs and plantrooms.

Scroll sideways for more

Crane lifting the freestanding steel mast upright at the Wisbech glasshouse site
Mast lift, Wisbech
Crane and twin wall flue sections on the lorry at Wisbech
Flue sections arriving, Wisbech
Stainless steel twin wall flue rising beside the biomass boiler at Wisbech
Internal route, Wisbech
Roof level flue route with two stacks and an elbow beside a brick chimney at the crematorium
Roof route, Barrow-in-Furness
Finished stack and weathering plate on the crematorium roof
Terminal and weathering, Barrow-in-Furness
Existing industrial chimney at Prestwick with the new twin wall connection at its base
Existing chimney, Prestwick
The existing 30 metre guyed chimney at the Bolton mill before replacement
Existing chimney, Bolton

Common questions

Straight answers.

Anything else, call 01395 201950 or email sales@gruneng.com.

Send the chimney height, the plant details and a photo.

Price normally within 24 hours of drawings or survey information. Enquiry registered the same day with a job reference.