RC & Post-Tensioned Frame Specialists
The UK network of specialist concrete frame contractors
Tell us about your scheme and we’ll match it to vetted reinforced concrete and post-tensioned frame subcontractors — for competitive quotes from teams who deliver your exact structure type.
Why Source Your Frame Through Our Network?
We take the risk out of procuring one of the most critical packages on your build.
Vetted Frame Contractors
Every contractor in our network is checked for experience, accreditation, financial standing and safety record.
Multiple Competitive Quotes
One enquiry is matched to several suitable RC and PT specialists, so you get genuine price tension.
Nationwide Coverage
Frame teams across England, Scotland and Wales, matched to your project’s region and sector.
Fast Turnaround
Project details in, matched contractors back, normally within one working day.
What our contractors deliver
Concrete Frame Services
Whatever the structural solution, we match your scheme to frame contractors with a proven record in that exact discipline.
Reinforced Concrete (RC) Frames
In-situ RC columns, beams, walls and slabs for residential, commercial and education buildings. Robust, fire-resistant and ideal for repetitive floor plates.
Learn more →Post-Tensioned (PT) Frames
Bonded and unbonded PT flat slabs and transfer structures for longer spans, thinner floors and column-free space — often unlocking extra storeys.
Learn more →Hybrid & Transfer Structures
Combining RC, PT and precast where each performs best, including podium transfer slabs over basements, retail and car-park levels.
Learn more →Basements & Substructure
Piling coordination, capping beams, retaining walls and watertight (Type B) concrete basements delivered with the frame package.
Learn more →Cores & Stair / Lift Shafts
Jump-form and climbing-form concrete cores that set the pour cycle and keep tall buildings on programme.
Learn more →Design & Build Frame Packages
Single-point frame packages with temporary works, falsework and design coordination, de-risking the structure for the main contractor.
Learn more →What clients say
“We needed a PT specialist who could hit a tight slab cycle on a constrained city site. The contractor they introduced turned a programme risk into our best-performing package.”
Project Director
National main contractor
Recent work
Frames Delivered Through Our Network
Anonymised examples of the kind of concrete frame packages our contractors take on across the UK.
Build-to-Rent
28 storeys
Manchester · RC frame + jump-form core
A repetitive residential tower delivered on a 6-day floor cycle with a jump-form core, keeping the frame off the critical path through winter.
Grade-A Offices
+1 storey
London · Post-tensioned flat slabs
Switching to PT flat slabs shaved structural depth across 14 floors, recovering enough height for an additional lettable floor within the planning envelope.
Life Science / Labs
< 0.1% damping target met
Bristol · Vibration-controlled RC
Stiff in-situ RC floors tuned to a tight vibration criterion for sensitive lab equipment, verified against the structural engineer’s response factor.
Find Concrete Frame Contractors Near Your Site
We have RC and PT frame specialists ready to quote across the UK’s major construction markets.
Free Online Tools
Scope Your Frame Before You Procure
Free tools to help you make the right structural call — before you go out to the market.
RC vs PT Frame Selector
2 minAnswer 5 questions about your scheme and get a reasoned RC, PT or hybrid recommendation.
Service Explorer
See every concrete frame discipline our contractors deliver, from cores to transfer slabs.
View All Tools →
Every free tool in one place, with guidance on which fits your project stage.
From the blog
Insight for Specifiers & Buyers
Practical guidance on choosing, procuring and de-risking concrete frame packages.
Jun 2, 2026 · 11 min read
RC vs Post-Tensioned Frames: Which Should You Specify?
Reinforced concrete and post-tensioned frames each win on different jobs. Here's how span, floor-to-floor height, programme and vibration drive the decision, and where a hybrid frame beats both.
May 21, 2026 · 9 min read
Why Developers Specify Post-Tensioned Flat Slabs
Thinner slabs, longer spans and fewer columns: PT flat slabs can unlock extra storeys within the same building envelope. We break down the commercial case and the buildability trade-offs.
May 9, 2026 · 10 min read
How to Read a Concrete Frame Programme (and Protect the Pour Cycle)
The pour cycle is the heartbeat of a frame package. Here is how main contractors can sanity-check a subcontractor’s programme, from crane strategy to striking times and the critical floor-on-floor rhythm.
Get Quotes For Your Frame Package
Send us your project details and we’ll match you with suitable RC and PT frame contractors.