Hertfordshire · England

Woodcock Hill Window Mastic

Our applicators work in Woodcock Hill on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Rain getting in at the frame or under the sill
  • Sealant in the wrong colour for the frame
  • Cracked internal joints between frame and plaster

Window mastic near Woodcock Hill

Woodcock Hill: your questions answered

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

Yes. We work for landlords and agents as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.

Do you cover Woodcock Hill for window mastic?

Yes. We work across London and the South East, and Woodcock Hill is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job.

What information do you need?

Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or email us.

Do you seal inside as well as outside?

Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.

Is it worth trying it myself?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Do you do commercial work?

Yes, regularly. Larger jobs can be planned room by room or area by area.

Will there be a smell?

It depends on the product. Some smell for a while, some hardly at all.

Are you insured?

Yes, we are fully insured.

About our window mastic in Woodcock Hill

From a single sill to a whole house of windows, the work is priced before anything is done. Just ring 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached. We work on uPVC windows, timber windows & doors and aluminium frames, and people most often call us about rain getting in at the frame or under the sill and whistling draughts around closed windows.

Somewhere as small as Woodcock Hill, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.

A one-year guarantee comes as standard, so you are covered after we have gone.

Where
Woodcock Hill (WD3)
Region
Hertfordshire
Cover
12 months on all our work
Quotes
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

What window mastic looks like in Woodcock Hill

Historic houses like Ickenham Hall (about 4.3 miles south) are a reminder that the area around Woodcock Hill has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Rented homes near Rickmansworth station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. If you live in an older home near Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Woodcock Hill is about 1 mile south of Rickmansworth, in Hertfordshire. Jobs in Woodcock Hill get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Woodcock Hill is one of 381 towns and villages in Hertfordshire we cover. Our London page covers work nearby, about 18 miles away.

Postcode districts we cover here for window mastic: WD3. If you need window mastic at a property on Harefield Road and Woodcock Hill or anywhere close by, our applicators can take on the job. Other places close to Woodcock Hill include Batchworth (1 mile north-east), Hill End (1 mile south-west), Batchworth Heath (1 mile east), Rickmansworth (1 mile north) and Harefield (1 mile south-west). Within a short drive, we also cover Watford (4 miles north-east), Hemel Hempstead (9 miles north), St Albans (11 miles north-east), Harpenden (14 miles north), Hatfield (14 miles north-east) and Borehamwood (9 miles east).

Landmarks near Woodcock Hill

We work in homes and buildings around Rickmansworth Aquadrome, Rose And Crown Public House and The Harefield Academy and the streets around them. For rail, the closest station is Rickmansworth station, about 1.3 miles north. A little further out are Chiltern Open Air Museum (3.3 miles west) and Charter Place (3.9 miles north-east). Not far away are Dews Farm Sand Pits and Tumbling Bay.

Map of Woodcock Hill © OpenStreetMap contributors

Quotes for window mastic in Woodcock Hill

The price is agreed before any work begins. It’s based on:

  • When we can work, for business premises
  • Whether old sealant or filler has to be cut out
  • The number and length of the joints
  • Whether the work is at height

There are no prices on our website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or send us an email and we will talk you through it.

What to tell us for a quote

To help us quote quickly, please include:

  • Access, such as stairs, a lift or height
  • Whether it has been sealed before
  • Photos by email, if that is easy
  • How many joints, rooms or windows are involved

Want a quote for window mastic? Please ring 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before we start.

Why deal with it now?

Draughts and leaks don’t always mean new windows. Where the frames are sound, new mastic usually deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we’ll say so. Older cottages and farmhouses around Woodcock Hill can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.

Why Woodcock Hill customers choose us

  • Experience in homes, commercial sites and hotels
  • A choice of colours where the product allows
  • Sealant colour chosen to suit
  • Every job guaranteed for a year

Read how sealant jobs are priced and customer reviews.

How it works

A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. Most jobs take a morning for a couple of windows and a door. For a village or hamlet like Woodcock Hill, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. First, we confirm safe access to each frame.
  2. All the failed sealant is cut away, along with any loose debris.
  3. The surfaces are cleaned and left dry, and primed where the sealant calls for it.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. The joint is shaped to shed water and the area tidied.

Before we arrive

  • Tell us about any previous sealing or DIY attempts
  • Mention any parking rules near the property
  • Mention any sign-in or site rules at work premises

Ask for a quote

Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job.

Get a price

Advice

Landlords, agents and businesses in Woodcock Hill

For anyone letting property in or around Woodcock Hill, jobs at different addresses can be quoted together. Send us the addresses and the work at each.

Landlords and agents in Woodcock Hill can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.

Signs you need window mastic in Woodcock Hill

On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.

Most people get in touch after spotting something like this:

  • Black, perished sealant on frames
  • Rushed sealant from a window installation
  • Mastic that has split away from the wall
  • Water coming in at the bottom corners of a door

If you look after a building such as St Mary's Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.

What to look for in a quote

  • What guarantee comes with the work
  • Is VAT in the price?
  • What insurance they hold
  • What happens if the job turns out different

How to choose a mastic man

When something else is needed

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • Penetrating damp from a failed cavity tray or render
  • Faulty window hardware

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 Woodcock Hill

  • Window sills
  • Composite doors
  • uPVC windows
  • Aluminium frames
  • Patio & French doors
  • Timber windows & doors

Looking after it afterwards

Good habits help new joints last longer. Our tips:

  • Repaint timber before it’s bare
  • Walk round the house once a year and look at the joints
  • Avoid harsh chemicals near the mastic
  • Do not paint over the silicone

Try not to touch the new joint while it cures, for as long as we advise. Keep jet washers away from the frames.

Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.

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