Hampshire · England

Gutter Sealing in Monxton

Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for homes and businesses in Monxton and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Dripping gutter ends
  • Water dripping where gutter sections meet
  • Trim joints where the sealant has failed

Need gutter sealing in Monxton?

Gutter sealing in Monxton

Open fascia and soffit joints spoil the roofline and can let weather in. We seal them in a colour to suit where possible. We work on uPVC fascias, gutter end caps and soffit joints, and people most often call us about wet patches on the wall under a gutter joint and old sealant on roofline trims that has split.

External sealant needs dry, clean surfaces, so work around Monxton is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.

All of our work is guaranteed for twelve months, in Monxton and everywhere else we cover.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Monxton (SP11)
Wider area
Hampshire
Guarantee
A year, on every job
Quotes
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026

How we quote for gutter sealing

We quote each job individually. These are the things that affect it:

  • The product the joint needs
  • The number of rooms or windows
  • The number and length of the joints
  • How much old sealant there is and how hard it is to remove

The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.

What we need to know

Photos help, but a description is a good start. Try to tell us:

  • Any access issues, like height or stairs
  • What the problem is, such as mould, gaps, leaks or cracking
  • Whether it’s a home or a business
  • Roughly how big the job is

Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand.

Work for landlords, hotels and businesses

If you manage several properties in or around Monxton, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.

We work for letting agents and landlords as well as homeowners. Resealing between tenancies keeps a property looking cared for.

What we cannot put right

Some problems need a builder, plumber or other trade rather than us:

  • Fascias that need replacing
  • Gutters that have dropped or pulled away
  • Blocked downpipes

Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before you book.

Joints and surfaces we work on

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

DIY sealant or a professional job?

Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.

Monxton questions

Will you come out to Monxton?

Yes. Monxton is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you help a landlord with a rental near Andover station?

Yes, we work for landlords and agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.

Do you seal gaps in fascias and soffits?

Yes. We seal open joints along fascias and soffits in a colour to suit.

Are you ARBOMaster approved?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

What guarantee comes with the job?

Our 12-month guarantee applies on every job.

What should I tell you?

Tell us what needs doing and where, plus photos if you have them. We’ll ask anything else we need to know.

Where do you work from?

Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Can you seal over the old sealant?

No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.

Why it’s worth doing now in Monxton

A bead squeezed onto a wet joint might hold for a while, but it soon lets go. Cleaning out and drying the joint first is what makes it last. Around Monxton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Combining jobs into one visit is usually more efficient than separate visits. You will get one clear quote for the whole job.

Why choose Mr Mastic in Monxton

  • One-year guarantee on every job
  • Sanitary silicone with an anti-fungal additive in wet areas
  • ARBOMaster approved applicator
  • White, clear, grey or coloured to suit, where the product allows

Read our cost guide and our reviews.

How it works

You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the job takes anything from an hour or two to a few hours in most cases. In a small place like Monxton, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We look at the gutters, fascias and trims and agree the joints to seal.
  2. We clean out each joint.
  3. We make sure everything is dry.
  4. We apply exterior or gutter sealant and finish it neatly.
  5. The joints are checked once sealed.

Getting ready for the visit

  • Keep pets and children clear of the area while we work
  • Tell us if parking is tricky
  • Tell us about any previous sealing or DIY attempts

How to get a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.

Get a quick quote

Advice

When to call us in Monxton

Water spilling over a blocked gutter is often mistaken for a leak. If the downpipe is blocked, water has nowhere to go, which is why we look before we seal.

It’s worth asking for a quote if you see:

  • Garage door frames letting rain in
  • Fascia boards with gaps between them
  • Trim joints where the sealant has failed
  • Internal damp traced to a gutter joint

For landlords with property near Andover station, a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.

What your quote should include

  • How much experience the applicator has
  • Are they insured?
  • What the cure time is
  • Is the old sealant removed completely?

How to choose a mastic man

Outside joints around Monxton

Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you live in an older home near Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Amport Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

Monxton is about 3 miles west of Andover, in Hampshire. From the centre of Monxton to the outskirts, we cover gutter sealing for every kind of property. We cover 683 towns and villages across Hampshire, large and small. For nearby work, see our Southampton page (21 miles or so).

Every address in SP11 is within our area for gutter sealing, from the main roads to the quietest streets. Whether your property is on High Street, Green Lane and Abbotts Ann Road or a nearby road, we can help. We also cover the places around Monxton: Amport (1 mile west), Abbotts Ann (1 mile south-east), Fox (1 mile south-west), Little Ann (2 miles south-east) and Anna Valley (2 miles east). We also work in nearby towns such as Winchester (14 miles south-east), Andover (3 miles east), Romsey (14 miles south), Hyde (14 miles south-east), Tidworth (6 miles north-west) and Weeke (13 miles south-east).

Local landmarks in Monxton

Typical jobs here are in homes near The Black Swan Public House and John Hanson Community School. The closest station to Monxton is Andover station, roughly 2.8 miles east of the centre. A little further out are Andover Museum (3.4 miles east) and Andover War Memorial Hospital (2.8 miles north-east). The countryside around Monxton includes Anton Lakes and Mill Lake.

Map of Monxton © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job