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Optimus

Optimus

4.9(42 reviews)See reviews ↓·Plymouth

About the company

Optimus is a family-run local business and an Assure Certified Installer, certified through the Assure Competent Person Scheme. The company carries £10,000,000 of public liability insurance and provides installation and product guarantees covering eligible frames, sealed glass units and hardware. Eligible frames, hardware and sealed glass units are covered by manufacturer warranties. Jon Fitzpatrick-Warren is Co-Founder and Operations Director and has over two decades of fenestration expertise. Optimus serves homeowners across Plymouth and the surrounding South Devon area, and communities across Devon and Cornwall.

It installs uPVC, aluminium and timber-effect windows; composite front doors, uPVC panel doors, French doors, sliding patio doors and bi-fold doors; and A-rated and above glazing, offering double-glazed (A-rated) and triple-glazed (A-plus rated) systems. It supplies and installs Solidor composite doors, offers secondary glazing for listed buildings and flats, and provides an exclusive discount for UK Blue Light Card holders. It provides double glazing in Plymouth, including energy-efficient windows, doors and conservatories.

What customers say

Based on genuine customer reviews

Optimus, based in Plymouth, has built a strong local reputation through repeated recommendations and word of mouth. Its team carries out window and door installation, including PVC and aluminium products, and several reviewers describe the way Chris handles initial consultations, offering frank product guidance without pressuring customers into a sale.

A point made in several accounts is the professionalism of the fitting crews, specifically Tim and John, who are praised for their tidy workmanship, careful finishing and clear explanations of locking mechanisms and maintenance. Customers repeatedly mention being kept informed from the first enquiry through to completion, with updates on order progress and plenty of opportunity to ask questions. The quality of the finished result, whether replacing single-glazed units in a period property or fitting new double doors and windows, is described as faultless, with clean work areas and thoughtful extras such as painting render around the frames.

Reviewers also value the honesty and knowledge shown at quotation stage, noting that the advice was given without gimmicks or jargon, and many say they would return for future home improvements. The combination of reliable scheduling, friendly installation teams and thorough aftercare is what several accounts highlight as the defining feature of the service.

Aluminium WindowDoor supplierPVC windows supplierWindow installation service
Optimus — Customer photo
Optimus — Customer photo
Optimus — Customer photo
Optimus — Customer photo
Optimus — Customer photo
Optimus — Customer photo

Reviews

Reviews are taken from publicly available sources.

AF
Andy Fell7 April 2026

From our first meeting we knew Optimus windows and doors were a professional outfit and they would do a good job. They lived up to our expectations. Arrived on time and fitted the door to perfection. Explaining all about the locking mechanism and the minimal maintenance required. We would definitely use them again

BD
Bryn Davies22 February 2026

We were recommended to Optimus Windows and Doors by a friend and what a great find that was. Chris, John and his team on the two jobs we asked them to do were always positive and kept us informed at every stage. We would certainly not hesitate in using them again. A relief to know there are responsible and professional operators out there who have knowledge and take a priority in looking after their customers.

BD
BARNEY DUNSTAN29 November 2025

Fantastic service and products. I needed a window and bifold door for a renovation. Chris was knowledgeable, helpful and asked all the right questions so I got what I needed. I looked at various other companies online and so glad I didn’t use them. I’d recommend 100% and will use again in the future.

PI
Pretty in Print Art Orders26 March 2025

Excellent customer service - we were referred to Chris via Timberlook windows. We live in a large period home renovation with single glazing, and were looking at whether or not we should consider the cost of replacing the windows with double glazing units. Throughout, Chris was polite and professional, giving us the frank advice we had hoped for. It was a refreshing change not to be “sold to”, receiving advice that benefited us financially. I can’t thank Chris enough for his time - excellent chap and would highly recommend!

DS
David Stone5 February 2025

I can't praise Chris, Jon and Tim enough, from our first meeting ,when we looked and discussed the types of windows and doors with Chris, who is professional and very knowledgeable , he put us at ease with our questions so we arrange a date for the survey at our property and received our quote a few days later , not the cheapest but we are so glad we went ahead. Jon and Tim have a wealth of knowledge and experience and made the process look easy, the finishing touches are brilliant , and the benefit of having no mess left after the days work . We need more work done in the future and will not hesitate to use them again we can't recommend them enough. Excellent service brilliant products . Thanks again Dave.

KB
Kim Balshaw15 November 2024

From my very first enquiry about a quote, with my many questions, right through to the last day of installation, I cannot fault anyone at Optimus. They kept me updated about order progress, rang to give me updates and Tim and John who carried out the fitting of my new windows and doors were outstanding. Kept everything clean and tidy and the finishing touches around the windows are faultless. If you are in any doubts about using Optimus, rest assured, I would highly recommend them.

EH
Elsbeth Hallam26 October 2024

I would highly recommend Optimus windows after our recent experience. Chris advised us on best products and styles ensuring we received what we needed. The team who came to fit the windows where friendly and helpful and left no mess, infact they even painted the render around the windows when they had finished which was a lovely bonus! I wouldn’t hesitate to use Optimus again on our future home developments!

Window & door installers in Plymouth compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 11 businesses in this category in Plymouth are compared.

RankProviderRatingReviewsOpen Sat.
1DNA Window Solutions★ 5,0157No
2Ace Double Glazing★ 5,0153No
3Roofline Windows and Doors Ltd★ 5,035No
4Landmark Windows & Doors★ 5,030No
5The Door Doctor Uk★ 4,9120Yes
6Optimus (this page)★ 4,942No
Contact
+441752717988www.optimus-sw.co.ukLipson, Plymouth PL4 7PA
Working hours
Monday08:00–17:00
Tuesday08:00–17:00
Wednesday08:00–17:00
Thursday08:00–17:00
Friday08:00–17:00
SaturdayClosed
SundayClosed