Galvanised channel support frame braced around two stainless steel flues on a flat roof

Services

Support steelwork. Frames, masts, decks and brackets, designed with the flue.

Every support and every fixing drawn, priced and installed with the flue, chimney or plant it holds up. For contractors and consultants.

  • Supply only
  • Install only
  • Supply and install
Price back from drawings or survey
0hrs
Survey within a week of order
0days
Calcs and CAD drawings after survey
0min
Job-specific RAMS
Sameday
Order to install, faster when urgent
2 to 0weeks

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

Every support. Every connection.

Support steelwork, frames and fixing details coordinated with the flue, chimney or plant installation, with the interfaces to the building agreed up front.

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

  • Flue support steelwork and brackets
  • Channel frames, drop rods and hangers
  • Plant decks and mesh grating
  • Tank and equipment base frames
  • Chimney and stack support structures
  • Freestanding masts
  • Rubber-footed and deadweight frames
  • Liner and riser support details

The engineering

The frame is on the drawing before it is on the roof.

Three real support drawings. A channel frame for a generator exhaust extension, and the braced roof frames for two crematorium flues.

Elevation of a channel support frame beside a silencer, carrying a 500 ID exhaust up to a high temperature terminal
Hillingdon. Generator exhaust extension and support frame, revision 1, 9 January 2026. For approval, not as built. Tap a numbered point to see where it is on the drawing.
  1. Design and calculations ↗

On site

Frames, masts and decks.

Scroll sideways for more

Galvanised channel support frame on rubber feet around a stainless steel flue on a flat roof
Frame on rubber feet, Swansea
Braced channel support frame around two stainless steel flues
Braced frame detail, Swansea
Supported stainless steel terminal in front of a tall office building
Terminal and frame, Swansea
Crane lifting the freestanding steel mast upright at Wisbech
Mast lift, Wisbech
Steel support frame carrying an exhaust silencer
Silencer frame, Applecross
Channel support frame beside a silencer carrying the exhaust extension at dusk
Exhaust extension frame, Hillingdon
Mesh grating walkway between plant on the plant deck survey
Plant deck survey, Exeter

Common questions

Straight answers.

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

Send the equipment, the route and what it fixes to.

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