Doors and Porches - Alpha Home London

Our doors and porches are built to the highest standards in security, durability and maintenance free living.

Alpha Home Improvements offer a bespoke design to match your requirements, from front door to a full porch conversion.

Wide range of opening styles are available

All our products comply with the highest industry standards

We install the latest in locking technology to provide unrivalled security for your home

Our elegantly styled French doors may be the perfect solution for your home. With the addition of glazed and solid panels you can create a design to suit your interior styling. A bi-fold door can be the ideal choice to bring the “outside in” and open up your living space. Our sliding patio doors, installed with the latest in safety, ‘Easy-slide’ technology.

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High Security Front Doors Hemel Hempstead

The ERA “INVINCIBLE” door cylinder has 85% more metal than a standard cylinder!

Standard euro cylinders are notoriously weak – they need a central fixing hole to secure them in place, and there’s 50% less metal in this area
than at the front or back section of the cylinder – it’s this lack of material that makes cylinder snapping so easy.

The ERA Invincible cylinder addresses that area of weakness head on. The Invincible has a newly designed robust “squared” off platform that significantly strengthens the mechanism against attack. The patented protected design completely removes the ability to break into a cylinder.
Manufactured from solid brass, it has 85% more metal than a standard euro cylinder – this unique design is the powerhouse of the lock world. The Invincible cylinder is fully Kitemarked and certified to TS007:2014 and BS EN 1303:2005.

Anti-pick | Anti-drill | Anti-snap | Anti-bump

Residential UPVC

Apha Home front doors are designed to perfectly match our UPVC window range. You can also personalise your front door with matching sidelights, decorative glazing options, handles, letterboxes and knockers.

All products are a carefully designed to enhance your property and are subject to rigorous performance testing to ensure high quality standards are maintained. We provide a full ten year warranty.

Personalise your door… a range of high quality furniture include, letter plates, knockers, spy viewers and brass numerals to. All door panels are available in a choice of White, Mahogany, Light Oak or Rosewood finishes colour matched to your profile.

Hardwood Composite

A composite front door combines the traditional appearance of a timber door with the thermal performance and optimum style of a modern door – offering up to six times of insulation protection. Whether your home is on a busy main road or in a rural area, a composite door guarantees security together with maintenance-free performance.

While standard composite doors are made with foam inside, our composite doors are uniquely constructed in solid hard wood, which offers better security and build quality.

Our Door Construction

Lead free, 5 chamber profile with 100% recycled reinforcing.
Thermally efficient Solid Timber Core.
Robust through colour thermo plastic skins.
Realistic wood grain effect or smooth finish.
Optional integral mobility access aluminium threshold.

The ONLY Hardwood core composite door on the market

Multipoint locking
Double & triple glazed units
Energy efficient reinforcing
High quality furniture
Colour fastness guarantee
Trisys glazing cassette system

The Italia Collection of composite doors

The Italia collection is a new generation of truly contemporary designs, which will add a touch of style to your home. Carefully designed and crafted from the finest materials, every door in the Italia collection has a definite style inspired by the Italian passion for design. Each door is handmade in Staffordshire, ensuring the finished product is of an outstanding, individual quality. Our range of glass styles and door furniture have been carefully chosen with the latest fashion and designs in mind. All of the doors in the Italia Collection are also available with handmade Warwick Glass – so no two pieces are ever the same.

Other High Security Door Types

Stable

Originally used in more traditional buildings, but also popular in family homes, Liniar stable doors use the same profile as our windows, ensuring a perfect match.

Patio (sliding door)

Our exclusive patio door with ModLok™ is one of the UK’s only PVCu patio door systems to include a family-friendly, low threshold option without the need for major renovation work to your home.

Available in beautifully sculptured Liniar profile, you can choose from 2, 3 or 4-pane styles, in a range of gorgeous colours to perfectly complement the style of your home – and your replacement patio door installation can usually be carried out in just one day.

With patented ModLok™ locking mechanism, in addition to a range of other anti-theft features, your Liniar patio door offers the highest levels of security – and as each Liniar Patio system is fully designed and manufactured in the UK you can be sure of the highest quality. The unique Liniar ‘air glide’ running system, means your patio door runs quietly and smoothly – you really need to see it for yourself!

French

Offering a more traditional alternative to patio or bi-fold doors, the stunning Liniar range of PVCu French doors comes with the same high specification and colour options as our window range.

The Liniar French door is available in either ‘open in’ or ‘open out’ style to suit your living space and provide your home with a beautiful and secure entrance – complete with a range of patented low and ultra low threshold options.

Bi-fold

The Liniar bi-fold is the only PVCu range with a completely smooth opening and closing action, slimline frames, bespoke hinges and locks, together with a choice of styles, colours, pane combinations and handles – and our registered design low threshold opening for family-friendly or wheelchair access.

The bi-folding door range comes in a huge range of opening configurations so you can be sure of getting the right one for your home – from a 2-pane to a 7-pane door. Talk to your Liniar stockist about the most suitable combination for your needs.

Now available with patented ModLok™ locking mechanism for extra security and strength, the Liniar bi-fold was the first bespoke PVCu bi-fold on the market – and is still the best! Add to that being one of the most thermally-efficient bi-folding door on the market, helping to keep energy bills lower, and you can see why the Liniar bi-fold is a more cost-effective choice than a timber or aluminium door.

Testimonial

5 out of 5

From first quote to finished product everything was managed superbly. The door and finish is exactly what we asked for. The fitter was very skilled and made sure everything was to our satisfaction. The owner Jason also visited to check we were happy.

Sarah, Hertfordshire - 03/2019

5 out of 5

I had seven windows triple glazed and a very professional job was done. I thought the price was extremely good. Alex, the installer, worked so hard and late. The only downside was no contact from the company during a four week pause during proceedings. All in all I'm very pleased indeed.

Customer in Hertfordshire - 09/2019

5 out of 5

The fitter came and did a fantastic job and cleaned up afterward and did the job properly, very pleased with this company.

Which? Trusted Traders Consumer - 01/2022

5 out of 5

I had excellent service from Alpha Windows from start to finish and am very satisfied with the high quality of the final product.

Rachel, Hertfordshire - 12/2016

5 out of 5

Alpha were extremely professional throughout the entire process from initial quotation through to fitting. I would not hesitate in recommending their services to anybody.

Mr Melton - 08/2014

5 out of 5

We are very pleased with the work that Alpha Home Improvements has done with our windows and patio door. They arrived on time and got the job done well and quickly. Mess was kept to a minimum and cleaned up afterwards. Would definitely recommend.

William, Hertfordshire - 12/2017

5 out of 5

My husband and I are so pleased with our conservatory which has added to our house so much. It has gone well beyond our expectations.

Karen and Andrew - 11/2019

5 out of 5

The guys working on the job were meticulous in their work and ensuring my home was left as clean as possible each night. Plus I felt comfortable leaving my house keys with them just to get on with it - and they did!

Manisha, Bedfordshire - 06/2018

5 out of 5

We had 4 windows & French doors fitted, excellent quality, completely transformed house. Jason very friendly & helpful nothing too much trouble. Fitters Paul & Satch arrived on time were terrific workers & cleaned up well. Everyone has admired the work. Would highly recommend them.

Which? Trusted Traders Consumer - 11/2016

5 out of 5

I would thoroughly recommend Jason and his team. Paul did an excellent job. Very pleased with my windows and the workmanship.

Louisa, Hertfordshire - 03/2019

5 out of 5

Replaced Facia, Soffit's and gutters. Did a good job, I would recommend them.

Margaret, Hertfordshire - 05/2018

5 out of 5

We have used Alpha Home Improvements for a number of things, namely a conservatory, new back door and new composite front door as well as a new patio door. Such a friendly professional business who were very, very accommodating and helpful. Any issues we had they assisted us promptly and considerately and sought to rectify the things as quickly as possible. Would definitely recommend.

Rebecca, Hertfordshire - 10/2017

5 out of 5

Even though Paul was working 24/7, he & his boss made sure that he could do the job of fitting both a new window and a door in the time we needed, so he came & worked all day Sunday!

Max, Hertfordshire - 06/2018

5 out of 5

From start to finish from initial conversation to completion, Alpha Home Improvements and their staff delivered on their words & my plans for our conservatory. Their staff were always professional and respectful and we are delighted with the finished article.

Steve, Bedfordshire - 01/2018

5 out of 5

Arrived on time and worked hard all day. Tidied away at the end of the day. A good, professional job. Happy to move things if necessary.

Irene, Hertfordshire - 02/2017

5 out of 5

The job was done by the agreed schedule. Will recommend them to my friends anytime, very professional in the job he was doing.

Morva, Hertfordshire - 01/2019

5 out of 5

We had 17 windows and doors replaced by Alpha Home Improvements, good quality A + rated triple glazing windows at a very competitive price. Great service from the team, we were kept informed all the way. Any small aftercare issue has been dealt with promptly and efficiently. We couldn't have chosen a better company and we are glad we used an independent local business. I would highly recommend them.

Customer in Hertfordshire - 06/2019

5 out of 5

I would highly recommend this company. Professional to efficient from start to finish.

Patricia, Hertfordshire - 01/2018

4.88 out of 5

From the beginning Alpha Home Improvements were a very efficient company. Their fitter who installed the windows was very good at his job. I would recommend this company to my friends. I would use them again.

Brian, Middlesex - 10/2017

5 out of 5

Excellent service, no hard sell, will use again.

Mr Aldwinkie - 09/2014

5 out of 5

Scratched glass replaced without a quibble. Great customer service.

Which? Customer - 04/2018

5 out of 5

Prompt, efficient job took time and cared for rest of house. Great finish to inside and outside, would recommend.

Peter, Hertfordshire - 05/2018

5 out of 5

Business replaced an existing conservatory with a brand new one. All work done on time and to a high standard. Very happy with completed work. No problems.

Ken, Hertfordshire - 08/2018

5 out of 5

Excellent job, quickly completed. Efficient clean workmen. Glad we chose Alpha and would use them again.

Patricia, Hertfordshire - 11/2016

4.88 out of 5

Not the cheapest quotation we had but the design of the windows was what we wanted and we hoped that by paying more we would get more. We were not disappointed. Installation was efficient and relatively dust-free.

Which? Trusted Traders Consumer - 01/2018

5 out of 5

Professional in every way in suggesting the back door we should have. Everything was on time and their work was quick and clean. A good price as well!

Julia, Hertfordshire - 10/2018

5 out of 5

We had a new conservatory fitted recently, the booking and planning process was quick and very professional, the Installer Dave and his colleague worked at a good pace and where very neat and friendly, they overcame a couple of problems due to the existing base but managed these with no fuss at all, I would highly recommend this company.

Customer in Hertfordshire - 08/2019

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Book your hup! design appointment now!

Doors & Porches

Our doors and porches are built to the highest standards in security, durability and maintenance free living.

High Security Front Doors Hemel Hempstead

The ERA “INVINCIBLE” door cylinder has 85% more metal than a standard cylinder!

Residential UPVC

Hardwood Composite

Our Door Construction

The ONLY Hardwood core composite door on the market

The Italia Collection of composite doors

Other High Security Door Types

Stable

Patio (sliding door)

French

Bi-fold

Testimonial