Hampshire · England

Cottonworth Gutter Sealing

Problem with your gutter and fascia joints in Cottonworth? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.

  • Cracked sealant along roofline trims
  • Streaks down the brickwork from a leaking joint
  • Damp patches inside below a leaking gutter

Book gutter sealing in Cottonworth

When it is not the sealant

Honest advice matters more to us than a booking, so here’s what new sealant won’t do:

  • A gutter length that has split
  • Downpipes that are blocked or broken
  • Gutters that have dropped or pulled away

If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.

Where we work in Cottonworth

  • Garage door frames
  • Roofline trims
  • uPVC fascias
  • Soffit joints
  • Gutter end caps
  • Gutter joints

Gutter sealing for homes and businesses in Cottonworth

Sealant only bonds to a clean, dry joint. So the old sealant and grime come out first, then dry the joint before sealing. If you are dealing with garage door frames letting rain in and water running down the wall below the gutter, we can put it right, on uPVC fascias, soffit joints and gutter end caps alike.

External sealant needs dry, clean surfaces, so work around Cottonworth is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Where
Cottonworth (SP11)
Region
Hampshire
Guarantee
12 months on all our work
Quote
Quoted before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Can I do it myself?

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.

Why act early in Cottonworth

A dripping gutter joint keeps wetting the same patch of wall. Over time that can stain brickwork, mark render and encourage damp, so it’s worth sealing early. Older cottages and farmhouses around Cottonworth can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.

Why choose Mr Mastic in Cottonworth

  • Every job guaranteed for a year
  • Colour picked to suit the job
  • Anti-fungal sanitary silicone in wet areas
  • Experience in homes, commercial sites and hotels

See what affects the cost and our reviews.

When to call us in Cottonworth

Stop ends take pressure from water running along the gutter. If the seal fails, water escapes at the end and runs down the wall.

If you can see any of these, it’s time to have the joints looked at:

  • Water running down the wall below the gutter
  • Drips from gutter joints and end caps
  • Damp on an inside wall under a dripping gutter
  • End caps that drip every time it rains

If you let a flat or house near Andover station, a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.

What to look for in a quote

  • Whether they’re fully insured
  • Is VAT in the price?
  • The length of the guarantee
  • How the surfaces are prepared before sealing

Our hiring checklist

How it works

Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours, depending on the number of joints and the access, and the area is left clean. Somewhere like Cottonworth needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We start by tracing the leak and checking the gutter itself is sound.
  2. The joint or trim is cleaned out and old sealant removed.
  3. The area is dried so the sealant can bond.
  4. An exterior or gutter sealant is applied to the joint.
  5. The run is checked and any debris near the joints is cleared.

How to prepare

  • On commercial sites, let us know about site rules
  • Let us know about earlier repairs to the joints
  • Mention any tricky access

Getting a quote

For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.

Get a price

Related advice

Gutter sealing in Cottonworth: local notes

The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

For an older house near a landmark such as Church of St Mary the Less, an extension built onto an older house moves differently, and the joint between them takes the strain.

Cottonworth is about 4 miles south of Andover, in Hampshire. Whether you are in the middle of Cottonworth or further out, gutter sealing is available for homes and businesses alike, from flats and houses to offices and hotels. Our area takes in 683 places across Hampshire. Our Southampton page covers work nearby.

Our applicators cover all of SP11 for gutter sealing. We also cover the places around Cottonworth: Fullerton (1 mile south-west), Chilbolton (1 mile east), Wherwell (1 mile north-east), Wherwell Wood (1 mile north) and Leckford (1 mile south). We also work in nearby towns such as Winchester (9 miles south-east), Eastleigh (14 miles south), Andover (4 miles north), Chandler's Ford (12 miles south), Romsey (11 miles south) and Hyde (9 miles south-east).

Landmarks near Cottonworth

We work in homes and buildings around Longstock Park and Abbots Mitre pub and the streets around them. Cottonworth’s nearest station is Andover station, about 4.1 miles north of the centre. Nearby you’ll also find Andover War Memorial Hospital (4.4 miles north) and Andover Museum (3.8 miles north). Green spaces nearby include Anton Lakes and Mill Lake.

Map of Cottonworth © OpenStreetMap contributors

Landlord and commercial work in Cottonworth

Letting agents and landlords in Cottonworth can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.

Your questions about gutter sealing in Cottonworth

Is Cottonworth within the area you cover?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

Is Cottonworth in your area for gutter sealing?

Yes. We work across London and the South East, and Cottonworth is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.

What does gutter sealing cost?

Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email with a short description of the job.

What information do you need?

Only a few details: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or send us an email.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.

Does someone need to be in?

It depends on the job. For work indoors, someone needs to let us in.

Will sealing fix a sagging gutter?

Sealant will not hold a sagging gutter. A gutter installer needs to refix it, and we will tell you if that’s what we find.

Do you seal gaps in fascias and soffits?

We do. We seal the joints, not replace the boards and we will let you know if a board has failed.

What affects the quote in Cottonworth

Call for a quick quote. The main things that affect it are:

  • How much there is to do
  • Which sealant suits the joint
  • How many areas need sealing
  • When we can work, for business premises

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.

What we need to know

When you contact us, these details help:

  • Pictures of the joints, sent by email
  • Access, such as stairs, a lift or height
  • Where the job is, and your postcode
  • How many joints, rooms or windows are involved

Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job