One Dry Day

Conservatory roof replacement in Grimsby

Grimsby had 636 mm of rain a year across 2024 and 2025, less than the 911 mm the average town in our ledger had. That still leaves 270 days a year with under 0.2 mm between 8am and 4pm, the kind of day a roof comes off and goes back on.

It also counts 55 noise nights a year, nights with rain hard enough to drum on polycarbonate between 11pm and 7am. We replace polycarbonate and glass conservatory roofs in Grimsby with 75 mm insulated panel roofs from £3,000, fitted onto the frame you have.

270
dry working days a year
55
noise nights a year
636 mm
rain a year
White insulated panel lean-to roof on a semi in afternoon sun
A white panel lean-to, finished the same day.

Grimsby's rain, day by day

Every sliver is one day, darker for more rain; the orange marks underneath are dry working days. Met Office UKV 2 km model data for Grimsby, January 2024 to December 2025.

2024702 mm of rain, 264 dry working days
2025569 mm of rain, 276 dry working days

When to book in Grimsby

In Grimsby the driest working months were October, January and May, and the wettest was September, when 63% of days stayed dry from 8am to 4pm.

The longest run of dry working days in a row was 35, ending in May 2025. The longest wait without one was 6 days. That is why we book roofs a week or two ahead and confirm the day on the forecast: a dry day turns up in almost every week of the year. When to book a roof swap has the full reasoning.

Dry working days by month in Grimsby
  1. 25Jan
  2. 21Feb
  3. 23Mar
  4. 22Apr
  5. 25May
  6. 23Jun
  7. 22Jul
  8. 24Aug
  9. 19Sep
  10. 26Oct
  11. 20Nov
  12. 23Dec

dry working days, the three highest picked out. Average of 2024 and 2025.

Rain at night in Grimsby

A noise night is one with at least an hour of moderate rain (0.5 mm or more) between 11pm and 7am. Grimsby had 55 a year, fewer than the 65 of the average town, and 2 nights with a heavy hour over 4 mm.

In the lab, heavy rain on 25 mm polycarbonate measures 64.6 dB against 52.0 dB for double glazed roof glass. Nobody has published the same test for aluminium panel roofs, so we will not put a number on ours. How loud rain is on each kind of roof sets out what is measured.

812 wet hours a year, by how hard it rains
  • Light (under 0.5 mm an hour)431 h
  • Moderate (0.5 to 4 mm)371 h
  • Heavy (over 4 mm)10 h
Kendal: 92Carlisle: 77Penrith: 79Barrow-in-Furness: 86Workington: 84Whitehaven: 89Blackpool: 82Burnley: 84Blackburn: 87Chorley: 89Durham: 53Darlington: 50Hartlepool: 55Middlesbrough: 48Sunderland: 50Gateshead: 49Morpeth: 51Hexham: 61Stockton-on-Tees: 50Whitley Bay: 50Ripon: 58Skipton: 78Whitby: 59Bridlington: 63Goole: 51Castleford: 52Dewsbury: 55Northallerton: 48Thirsk: 51Driffield: 59Boston: 53Skegness: 55Spalding: 50Louth: 57Grimsby: 55Scunthorpe: 55Gainsborough: 51Sleaford: 51Bourne: 56Horncastle: 57King's Lynn: 58Great Yarmouth: 61Lowestoft: 59Thetford: 59Cromer: 58Dereham: 58Felixstowe: 52Sudbury: 52Haverhill: 54Newmarket: 56Maidstone: 61Canterbury: 60Ashford: 66Folkestone: 72Dover: 70Margate: 55Sevenoaks: 66Tonbridge: 62Gravesend: 53Whitstable: 57Brighton: 69Worthing: 72Eastbourne: 70Hastings: 70Crawley: 62Horsham: 65Chichester: 69Bognor Regis: 67Haywards Heath: 67Lewes: 73Southampton: 65Portsmouth: 66Winchester: 66Andover: 63Fareham: 71Bournemouth: 69Poole: 68Weymouth: 72Dorchester: 75Aldershot: 59Plymouth: 80Torquay: 77Barnstaple: 87Newton Abbot: 73Exmouth: 66Tiverton: 79Truro: 86Falmouth: 80Penzance: 92Newquay: 78Yeovil: 68Wells: 78Minehead: 67Burnham-on-Sea: 70Chard: 73Shepton Mallet: 78Warminster: 70Melksham: 64Calne: 63Marlborough: 68Grimsby
Grimsby and the towns around it, sized by noise nights a year

Near Grimsby

We fit panel roofs across the Wolds, the Fens and the coast from Grimsby down to Boston. The nearest towns in our ledger:

All Lincolnshire towns or every town we cover.

Guide prices in Grimsby

The same as everywhere we work, fitted with the old roof taken away. Style nudges it; the survey fixes it in writing. What the price covers.

Guide prices from, by style and size
Style Small Medium Large
Lean-to £3,000 £4,000 £5,000
Edwardian £3,150 £4,200 £5,250
Victorian £3,300 £4,400 £5,500
Gable end £3,350 £4,500 £5,600
P-Shape £3,550 £4,700 £5,900
Lean-to with a white panel ceiling and a pale floor
A lean-to that feels like a room.

Questions from Grimsby

How many dry days does Grimsby get for fitting a roof?

Our ledger counts 270 dry working days a year in Grimsby, days with under 0.2 mm of rain between 8am and 4pm. Most roofs need one; we pick it from the forecast in the week before.

Is a polycarbonate roof noisier in Grimsby than elsewhere?

The roof is the same anywhere; the rain is not. Grimsby has 55 noise nights a year against 65 in the average town we track, and 10 hours of heavy rain.

What does a new conservatory roof cost in Grimsby?

Guide prices are the same as everywhere we work: from £3,000 for a small roof, £4,000 for medium and £5,000 for large, fixed in writing after a free survey.

Do you keep my conservatory frame?

Usually, yes. The bars, the dwarf wall and the frame get tested at the survey, and only a sound frame gets a panel roof price.

Worth reading before a Grimsby survey

Price a panel roof in Grimsby

Tap through seven questions for a guide range. The surveyor then measures, tests the frame and commits the figure to paper.