Ely · Cambridgeshire
Roof structure repairs in Ely
If the top of a wall at your Ely property seems to lean out at the eaves, the roof may be spreading. Ties, collars and straps can usually hold it back, sometimes with an engineer’s design for the new load path.
Guide price from£315per rafter inc VAT

- Postcodes
- CB6
- Population
- about 21,000
- Area
- Cambridgeshire
- Pricing region
- East of England
Why does the ground in Cambridgeshire matter for roof structure repairs?
Ely is in Cambridgeshire and takes in postcode districts CB6. About 21,000 people live there. Nearby places we cover include Newmarket (12 miles), March (13 miles) and St Ives (15 miles).
Shrinkable clay is widespread in Cambridgeshire. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Cambridgeshire: Victorian terraces in Cambridge and Peterborough, fen-edge cottages, and extensive post-war and new-build estates.
How much will roof structure repairs cost in Ely?
The ranges below reflect typical East of England costs for roof structure repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Repairing or doubling a rafter | £315 – £630 | per rafter |
| Purlin and strut strengthening | £1,250 – £3,150 | per roof |
| Tying in roof spread (straps and ties)est. | £840 – £2,600 | per roof |
Which repair method suits a home in Ely?
Tying in roof spread
New ties, collars or steel straps connect opposite rafters, or fix the rafter feet and wall plate firmly to the ceiling joists, so the outward thrust is resisted. Leaning wall heads are strapped back to the roof, and a badly spread roof may need partly rebuilding first.
Best for: Walls pushed out at eaves level by spreading rafters
Wall plate replacement
Rotten or crushed wall plates are replaced in short lengths while the rafters above are propped, and bedded on the wall in mortar. The plate is then strapped down to the masonry. It is often combined with rafter foot splices along the same run.
Best for: Rot along the eaves where rafters bear on the wall
What happens when we carry out roof structure repairs in Ely?
Loft and outside survey
On site we check rafter sizes and spacing, purlins, struts, ties and wall plates, look for rot and past alterations, and measure any lean at the wall head. The covering is noted too, because its weight affects the repair.
Engineer’s design where needed
Where purlins, struts or ties must be redesigned, or the roof carries a heavier covering, an independent chartered structural engineer is appointed to specify the work. We can arrange this, and their design sets the sizes and fixings.
Prop, strengthen and tie
The roof is propped where members are being changed, then rafters, purlins, struts and ties are repaired or added as specified. Coverings disturbed by the work are relaid, and building control inspects where the work needs it.
Signs you may need roof structure repairs
- Ridge line dipping in the middle when seen from the street
- Daylight through the tiles, or timber that is damp, stained or crumbling
- Horizontal cracks in the wall just below the eaves or ceiling line
Rules for roof structure repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Roof structure repairs in Ely: questions and answers
How much should I budget for roof structure repairs in Ely?
Guide prices for roof structure repairs in Ely start from about £315 per rafter, including VAT, on East of England rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Ely?
We do. Ely and the surrounding area are covered, including nearby Newmarket and March. A free initial assessment from your photos is the first step.
Why do houses in Cambridgeshire crack?
Gault Clay underlies much of the Cambridge area and Oxford Clay the west of the county around Peterborough and Huntingdon, while the northern fens are peat and silt that can shrink as they dry. Both clay and peat ground can move with the seasons. Only an investigation can say why a particular building has moved.
Can the roof be strengthened without removing the tiles?
In most cases, yes. Doubling rafters, adding struts and fitting ties can all be done from inside the loft with the coverings in place. Tiles usually only come off where timber near the eaves is badly decayed, or the roof is being re-covered anyway.
Do I need a structural engineer for roof repairs?
For like-for-like repairs to a few rafters, often not. Where purlins, struts or ties are being redesigned, the covering is getting heavier or the walls are being pushed out, you usually do. Where the repair needs an engineer’s design or sign-off, an independent chartered structural engineer is appointed, and we can arrange this.
Related work in Ely
- Lintel replacement
- Brick arch repairs
- Retaining wall repairs
- Extension pulling away repairs
- Chimney stack repairs
Roof structure repairs near Ely
Get a free initial assessment of a sagging or spreading roof in Ely from your photos or a call, and find out whether an engineer is needed.