One Dry Day

Conservatory roof replacement in Marlborough

Two years of hourly rain for Marlborough, 17,544 readings, add up to 966 mm a year and 1,128 hours with rain falling. For a roof swap the number that matters is dry working days, and Marlborough gets 255 of them a year (72nd of 100).

Under a lightweight roof the nights are what people notice, and Marlborough has 68 noise nights a year against an average of 65. We replace polycarbonate and glass conservatory roofs in Marlborough with 75 mm insulated panel roofs from £3,000, fitted onto the frame you have.

255
dry working days a year
68
noise nights a year
966 mm
rain a year
Victorian conservatory with a white insulated panel roof on a semi
A Victorian with its new white panel roof.

Marlborough'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 Marlborough, January 2024 to December 2025.

20241,120 mm of rain, 245 dry working days
2025812 mm of rain, 264 dry working days

When to book in Marlborough

Book in August and about 81% of days are dry through the working hours in Marlborough. Even February, the weakest month, manages 58%.

The longest run of dry working days in a row was 22, ending in August 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 Marlborough
  1. 23Jan
  2. 17Feb
  3. 22Mar
  4. 23Apr
  5. 21May
  6. 23Jun
  7. 21Jul
  8. 25Aug
  9. 18Sep
  10. 22Oct
  11. 22Nov
  12. 21Dec

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

Rain at night in Marlborough

We count a noise night whenever an hour between 11pm and 7am brings 0.5 mm of rain or more, the Met Office's moderate band. Marlborough had 68 a year, about the same as the 65 of the average town, and 5 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.

1,128 wet hours a year, by how hard it rains
  • Light (under 0.5 mm an hour)590 h
  • Moderate (0.5 to 4 mm)512 h
  • Heavy (over 4 mm)27 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: 68Marlborough
Marlborough and the towns around it, sized by noise nights a year

Near Marlborough

We fit panel roofs across the Levels, the Mendips and the chalk towns of west Wiltshire. The nearest towns in our ledger:

All Somerset and Wiltshire towns or every town we cover.

Guide prices in Marlborough

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 Marlborough

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

Our ledger counts 255 dry working days a year in Marlborough, 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 Marlborough than elsewhere?

The roof is the same anywhere; the rain is not. Marlborough has 68 noise nights a year against 65 in the average town we track, and 27 hours of heavy rain.

What does a new conservatory roof cost in Marlborough?

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 Marlborough survey

Price a panel roof in Marlborough

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