Hampshire · England

Window & door mastic in Fareham Common, Hampshire

Mastic around window and door frames, sills and patio doors for Fareham Common, backed by a one-year guarantee. Call for a quick quote.

  • Rushed sealant from a window installation
  • Damp patches on the reveal after heavy rain
  • Leaking joints at the ends of sills

Book window mastic in Fareham Common

About our window mastic in Fareham Common

Homes in Fareham Common have every kind of window: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you’re dealing with water coming in at the bottom corners of a door and old mastic that has gone black or come away, we can put it right, whatever the surface.

Around Fareham Common, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.

Big or small, it’s backed by our 12-month guarantee.

Where
Fareham Common (PO16, PO14)
Wider area
Hampshire
Guarantee
One year on every job
Price
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

How we quote for window mastic

There’s no set price list. What we look at:

  • Any mould that needs treating
  • How much old sealant there is and how hard it is to remove
  • The number of rooms or windows
  • The type of sealant required

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

What to tell us for a quote

Photos help, but a description is a good start. Please mention:

  • Access, such as stairs, a lift or height
  • The problem you’ve noticed
  • The address or postcode of the job
  • The rough size of the job

Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job.

The process

Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a few frames, or a day or more for a whole house. In a smaller place like Fareham Common, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.

  1. We start by checking each window and door with you.
  2. We remove the old mastic and clean the frame and the wall.
  3. Where gaps are deep, backing rod goes in first.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. Finally we tidy up and check each joint.

How to prepare

  • Mention any leaks or damp you’ve noticed
  • For indoor joints, keep the area dry beforehand if you can
  • Tell us about any previous sealing or DIY attempts

Ask for a quote

We don’t publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or email us.

Get a price

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Do you need window mastic in Fareham Common?

Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.

Signs it’s time to call us include:

  • A bead that doesn’t match the frame
  • Mastic that’s falling out in pieces
  • Gaps left after new windows were fitted
  • Draughts coming in around windows and doors

If you look after a building such as Wykeham House School, the mastic around its windows and doors needs looking after like any other building’s.

What your quote should include

  • Whether you can choose the colour
  • What product goes in the joint
  • Whether VAT is included
  • Whether all the old sealant comes out first

Choosing a sealant specialist

How the job changes by surface

Aluminium frames

Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.

Timber windows & doors

Where timber has rotted at the joint, it needs repairing first. If we find rot, we will tell you before going ahead, as a joiner will need to deal with it.

For landlords and businesses

From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

Letting agents often deal with us directly. Tell us the address, the job and how access works.

Leave it or put it right?

Not every sealant suits a window. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. In an older home around Fareham Common, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.

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

Why choose Mr Mastic in Fareham Common

  • Full insurance on every job
  • Approved under the ARBOMaster scheme
  • We leave the area clean and tidy
  • White, clear, grey or coloured to suit, where the product allows

Take a look at how sealant jobs are priced or our reviews.

Can I do it myself?

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

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

What window mastic looks like in Fareham Common

Fareham Common is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

In the older streets around Parish Church of St Peter and St Paul, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Letting a property close to Fareham station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Fareham Common is about 1 mile east of Fareham, in Hampshire. Jobs in Fareham Common get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Fareham Common is one of 683 towns and villages in Hampshire where we work for window mastic.

Our applicators cover all of the PO16 and PO14 postcode area for window mastic and the streets around it. Streets in the area include Bath Lane, Osborn Road and High Street, all of which we cover. Main roads around Fareham Common include the A32. Close by, we work in Wallington (1 mile north-east), Fareham (1 mile west), North Fareham (1 mile north), Boarhunt (2 miles north-east) and Crockerhill (2 miles north). Further out, we also cover Gosport (3 miles south), Havant (8 miles east), Eastleigh (11 miles north-west), Horndean (8 miles north-east), Totton (15 miles west) and Chandler's Ford (13 miles north-west).

Local landmarks in Fareham Common

Typical jobs here are in homes near Harrison Primary School, The Red Lion Hotel and Cams Hill School and the streets around them. Fareham Common’s nearest station is Fareham station, roughly 0.8 miles west of the centre. Well-known places in the area include Portchester Castle (2.8 miles east) and Carron Row Farm Museum (2.6 miles west). Not far away are West of the River Alver and Portsdown Hill.

Map of Fareham Common © OpenStreetMap contributors

Common questions in Fareham Common

Does the coastal weather in Fareham Common affect outside sealant?

Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.

I let a flat near Fareham station. Can you help?

Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.

Will it make a mess?

We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.

What sealant do you use?

Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.

Are you fully insured?

Yes. We’re fully insured.

Can you reach windows above the ground floor?

Yes, as long as they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.

Do you seal inside as well as outside?

Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.

Can new sealant go over the old?

No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

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