Evidence pages
McMahon Construction: its public claims,
Evidence page · mcmahonconstruction.ie · checked 2026-10-27
McMahon Construction: its public claims,
and the evidence behind them.
This page lists the checkable claims mcmahonconstruction.ie makes on its own public pages, where each claim is made, and what the company itself has published that backs it. It was checked on 2026-10-27 by OneDroid, a third party, from the company's own public sources only: 47 claims, 1 evidenced, 0 contradicted, 46 with no evidence published. Nothing on this page says a claim is true or false. Every reference points into a source whose sha256 as fetched is listed at the end of the page, so anyone can fetch the same bytes and compare. The same page as Markdown: /evidence/mcmahonconstruction.ie.md.
How to read this page
| Verdict | Meaning | Count |
|---|---|---|
| EVIDENCED | an artefact on the company's own surfaces would be false if the claim were | 1 |
| CONTRADICTED | the company's own surfaces disagree with the claim; both sides are referenced | 0 |
| NO EVIDENCE PUBLISHED | the claim is stated; nothing beyond the statement backs it in the sources checked | 46 |
These are the only three verdicts. They are statements about the company's own published sources as fetched on 2026-10-27, not about the world. A claim with no evidence published may well be true; the page says only that the company has not shown it. A contradicted claim may have a reading that reconciles the two sources; where the reviewers saw one, the note says so. Each claim has an id (C-001, C-002, ...) that is also its anchor on this page. The method and the rules for every page are on the evidence pages index.
Limits
Same sources only: the reviewers read what the company published and nothing else. They did not test the product, interview anyone or use outside records. Every verdict is about the sources as fetched on 2026-10-27; a page can change after that. One run is a sample of a moving site: a claim not listed may be right or wrong. The reviewers are AI agents run by OneDroid, checked by hand on a sample; OneDroid is not independent of its own method.
Right of reply
If you are McMahon Construction and a line is wrong, write to michal@onedroid.ai naming the claim id. Your answer is shown beside the verdict, in full and unedited, with its date, and does not replace the verdict. If you publish new evidence, the claim is checked again from the new sources, with a new date and new fingerprints, and the verdict changes when the evidence supports it. A wrong quote, URL or fingerprint is corrected on request and listed in the change log.
Change log
2026-10-27: first run.
Evidenced (1)
| Id | Claim, as made | Made at | Artefact |
|---|---|---|---|
| C-031 | The company has a Commercial photo gallery (and a Residential gallery) of its work. | www.mcmahonconstruction.ie/ (Galleries menu: Residential, Commercial) www.mcmahonconstruction.ie/photo-gallery/commercial/ (Commercial gallery page, photos) www.mcmahonconstruction.ie/photo-gallery/ (Gallery page, photos) | sources/photo-gallery_commercial.html#L751 sources/photo-gallery_commercial.html#L768 https://www.mcmahonconstruction.ie/photo-gallery/commercial/#HTTP 200, 24 wp-content/uploads images in dl.gallery-item blocks Live Residential and Commercial gallery pages with photos and menu entries exist and would be absent if the claim were false; PARTIAL: photos are uncaptioned so they show a gallery, not which projects. |
No evidence published (46)
| Id | Claim, as made | Made at | What would close it |
|---|---|---|---|
| C-001 | Burnchurch, Cuffesgrange, Co Kilkenny (company address) | www.mcmahonconstruction.ie/ (header/footer address line) www.mcmahonconstruction.ie/about-us/ (header/footer address line) www.mcmahonconstruction.ie/portfolio/ (header/footer address line) | Address printed in header and footer of every page; no registry entry, map embed or company filing on the site backs it. |
| C-002 | 087 238 2347 (company telephone number) | www.mcmahonconstruction.ie/ (header/footer contact line) www.mcmahonconstruction.ie/about-us/ (header/footer contact line) www.mcmahonconstruction.ie/portfolio/ (header/footer contact line) | Number printed in header and footer of every page; nothing beyond the statement (no tel: link, no registry). |
| C-003 | mcmahonconstruction@icloud.com (company e-mail address) | www.mcmahonconstruction.ie/ (footer mailto link) www.mcmahonconstruction.ie/about-us/ (footer mailto link) www.mcmahonconstruction.ie/portfolio/ (footer mailto link) | Address appears as a mailto link in every footer; a link is not evidence the mailbox is the company's, a registry or domain record would be needed. |
| C-004 | A construction firm, building houses, renovations & extensions. | www.mcmahonconstruction.ie/ (Welcome to McMahon Construction, first paragraph; meta og:description; JSON-LD WebSite description) www.mcmahonconstruction.ie/about-us/ (JSON-LD WebSite description) | Self-description on the homepage and meta description only; uncaptioned gallery photos do not establish what was built. |
| C-005 | The firm involves [two named principals, a pair of McMahons] carrying on expertise and work ethic learned from their site experience. | www.mcmahonconstruction.ie/ (Welcome paragraph; meta og:description) | Welcome paragraph only; no profile, CV or named-project record for the principals. |
| C-006 | The principals have site experience of over the last 35 years. | www.mcmahonconstruction.ie/ (Welcome paragraph 'over the last 35 years'; meta og:description) | Single homepage sentence with the 35 years figure; dated project history or qualification records would be needed. |
| C-007 | Mc Mahon Construction is based in Kilkenny and conducts most of its business in Kilkenny & surrounding counties. | www.mcmahonconstruction.ie/about-us/ (Location; meta og:description) | Location statement plus Kilkenny address; no client list or dated project map to show where business is done. |
| C-008 | We as a company value the need for training, in order to keep one step ahead of new regulations and building practices. | www.mcmahonconstruction.ie/about-us/ (Training; meta og:description) | Training statement only; training certificates or course records would be needed. |
| C-009 | We have used a number of air to water heat pump units. | www.mcmahonconstruction.ie/about-us/ (Green Energy) | Statement only; a named installation with date and unit make/model would be needed. |
| C-010 | We have worked with various green insulation such as sheep's wool and wood fibre insulation etc. | www.mcmahonconstruction.ie/about-us/ (Green Energy) | Statement only; named project or supplier invoice/spec would be needed. |
| C-011 | All waste is disposed of appropriately by a licensed haulier. | www.mcmahonconstruction.ie/about-us/ (Waste Management) | Statement only; no waste-collection permit number, haulier name or waste docket shown. |
| C-012 | Efforts are made to recycle material wherever possible. | www.mcmahonconstruction.ie/about-us/ (Waste Management) | Intent statement only ('efforts are made'); no recycling records. |
| C-013 | We enforce a clean site rule, for efficient work practice & safety on site. Each sub contractor must also adhere to this policy. | www.mcmahonconstruction.ie/about-us/ (Waste Management, second paragraph) | Policy statement only; no written site rule or safety statement published. |
| C-014 | We are a building firm that specialize in architecturally designed houses that have a strong attention to detail. | www.mcmahonconstruction.ie/portfolio/ (Private Houses; meta og:description) | Claim of speciality; the photo gallery is uncaptioned so no named architect-designed house is identified. |
| C-015 | We have worked with a number of the architects in the south east. | www.mcmahonconstruction.ie/portfolio/ (Private Houses) | Unnamed 'a number of architects'; named architects or practices with projects would be needed. |
| C-016 | We have carried out a number of renovations of older houses and cottages. | www.mcmahonconstruction.ie/portfolio/ (Renovations) | Statement only; named or dated renovation project needed. |
| C-017 | We have been able to replaster in the traditional lime renders, replace and make good to existing stonework, salvage roofs in poor condition and bring them back to their former glory. | www.mcmahonconstruction.ie/portfolio/ (Renovations) | Statement only; captioned before/after project page needed. |
| C-018 | We have refurbished offices, so that they meet the needs of clients. | www.mcmahonconstruction.ie/portfolio/ (Refurbishments) | Statement only; Commercial gallery photos carry no caption tying them to a client office refurbishment. |
| C-019 | We use the most up to date telecommunications networks & energy efficient lighting, heating and ventilation systems [in office refurbishments]. | www.mcmahonconstruction.ie/portfolio/ (Refurbishments) | Statement only; no specification, named project or supplier list. |
| C-020 | We have been involved in a number of conservation projects. | www.mcmahonconstruction.ie/portfolio/ (Conservation) | Statement only; no project pages, dates or conservation-body listing. |
| C-021 | Conservation project: Roth House Kilkenny, first phase to the Third House. | www.mcmahonconstruction.ie/portfolio/ (Conservation) | Named in one portfolio sentence only; no dated page, captioned photos, or owner/architect listing. |
| C-022 | Conservation project: Callan Church internal works. | www.mcmahonconstruction.ie/portfolio/ (Conservation) | Named in one portfolio sentence only; no dated page or captioned photo. |
| C-023 | Conservation project: Coolmore House Thomastown. | www.mcmahonconstruction.ie/portfolio/ (Conservation) | Named in one portfolio sentence only; no dated page or captioned photo. |
| C-024 | We have professional trades men as part of our team, who have plenty of experience in using traditional building methods involving stone work, lime rendering, natural slates & lead work, panelling etc. | www.mcmahonconstruction.ie/portfolio/ (Conservation, second paragraph) | Statement only; no trade qualifications or named craftspeople shown. |
| C-025 | Many of our sub contractors have worked with us for 10 years or more. | www.mcmahonconstruction.ie/our-values/ (Our Values, first paragraph; meta og:description) | Statement only; no subcontractor names or dated engagements. |
| C-026 | Services supplied: new builds. | www.mcmahonconstruction.ie/services/ (We supply the following services; meta og:description) | Services list on one page; gallery photos uncaptioned so not a project artefact. |
| C-027 | Services supplied: extensions & refurbishments of houses. | www.mcmahonconstruction.ie/services/ (We supply the following services; meta og:description) | Services list only; no captioned project. |
| C-028 | Services supplied: carpentry, including first fix (floor joists, partitions, roofing). | www.mcmahonconstruction.ie/services/ (Carpentry / First fix) | Services list only; no captioned project. |
| C-029 | Services supplied: second fix (hanging doors, fitting door frames, lock sets, skirting/architrave, wall panelling). | www.mcmahonconstruction.ie/services/ (Second fix) | Services list item only; no captioned project. |
| C-030 | Services supplied: maintenance to houses and commercial buildings. | www.mcmahonconstruction.ie/services/ (last list item) | Services list item only; no maintenance case, contract or client listing. |
| C-032 | We keep up to date with the latest in heating & energy requirements as part L of the Building regulations & best practice in the different energy heating. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Energy efficient house, paragraph 'We as a construction firm have a keen interest in this area') | Statement of staying current; no CPD record or cited TGD part L edition. |
| C-033 | Having a proven track record in airtightness to buildings, insulation methods, heat recovery units & the various heating pack for houses i.e. PV panels, air to water heat pumps, oil/gas. We have experience with all of these areas. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Energy efficient house; Heat pack ('Having experience with all of the heat packs we can advise')) | Claim of 'proven track record'; no test report, project list or named installation. |
| C-034 | We have an electrical contractor who has worked with us on various projects over the last 10 years. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Electrical) | Unnamed electrician and unnamed projects; no contractor name or registration shown. |
| C-035 | Our [electrical] contractor can advise at drawing stage of a lighting layout (mood lighting, levels of light, dimmers, security lights, intercom, surround sound, lighting and socket layouts). | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Electrical) | Capability statement only; no lighting design drawing or example. |
| C-036 | We are approved installers of SIGA airtight membranes and tapes. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Air tightness) | Statement only; no SIGA certificate, installer listing or certificate image on the site and no link to SIGA. |
| C-037 | We have been on training courses to up skill our team in [air tightness]. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Air tightness) | Statement only; no course name, provider or certificate. |
| C-038 | We have achieved an airtightness test level of 0.753 m3/(h.m2) @ 50 Pa on new concrete block built house. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Air tightness) | Figure 0.753 stated in text; no test certificate, tester name, date or address; a test report would be needed. |
| C-039 | The current building regulations (Technical Guidance Documents part L) have a maximum upper limit of 5 m3/(h.m2) @ 50 Pa. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Air tightness) | Regulatory figure restated; no citation or link to the Technical Guidance Document on the site. |
| C-040 | Best practice in domestic dwellings calls for an ac/h rate of not more than 3.0 (natural ventilation), 1.5 (mechanical ventilation, HRU), 0.6 (passive house standard). | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Air tightness, ac/h list) | Best-practice figures stated; no cited standard or link. |
| C-041 | SIGA are world leaders in air tightness to buildings. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Air tightness) | Superlative about a third party, no ranking or source. |
| C-042 | U valves [sic] of 0.15 W/m2 can be achieved to external walls or lower if required; equally low levels of .013 to attic and floors at affordable prices. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Insulation) | Figures stated in text; no calculation, build-up drawing or cost evidence. Reviewer's note: The disprove pass flagged the figures 0.15 and .013 on the same page as not 'equally low'. Reconcilable reading: .013 read as a typo for 0.13, which the sentence's own wording supports. Not scored as a contradiction; no U-value test record is published for either figure. |
| C-043 | We have being [sic] involved with all of these types of [wall insulation] construction (cavity, cavity with thermal board, timber frame with cellulose, timber frame with block outer skin) and can provide our opinions. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Insulation) | Statement only; no named project per construction type. |
| C-044 | We have used [heat recovery] units on a number of projects. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Heat recovery units) | Statement only; no named project or unit. |
| C-045 | Heat recovery units (HRU) become efficient when an air tightness of less than 1.5 ac/h is achieved. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (Heat recovery units) | Technical figure stated, no cited source or manufacturer data. |
| C-046 | A BER rating goes from A1 most efficient to E least efficient. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (BER certificates) | General BER fact stated in prose; no link to SEAI or a BER certificate. |
| C-047 | The BER covers energy use for space heating, water heating, ventilation & lighting, and is calculated on the basis of a standard occupancy using a DEAP calculation. | www.mcmahonconstruction.ie/air-tightness-and-insulation/ (BER certificates) | General BER/DEAP fact stated in prose; no link to SEAI or a certificate. |
Sources as fetched
Every verdict above points into one of these files. To check one, fetch the URL with a browser user-agent and run sha256sum on the bytes; a different fingerprint means the page changed after 2026-10-27.
| Source | HTTP | sha256 as fetched |
|---|---|---|
| https://www.mcmahonconstruction.ie/ | 200 | 8c0c89c5b728c2d40679a7939c9693bfd0076f7216fc814005a0c039c78398bb |
| https://www.mcmahonconstruction.ie/sitemap.xml | 200 (redirected to https://www.mcmahonconstruction.ie/sitemap_index.xml) | 897dcb142a317098ea7c612a0fe9d051e179978006d4c084cbc406c6e7b4b8ca |
| https://www.mcmahonconstruction.ie/robots.txt | 200 | 76ec6e5a3430915fbc0b92c7e41e7665a2f6ef9e49005070adac85131b61c8a0 |
| https://www.mcmahonconstruction.ie/page-sitemap.xml | 200 | 827f227e4f53af0007a9216dac52d4a646ea42ced6712bf98e2b39391c906526 |
| https://www.mcmahonconstruction.ie/post-sitemap.xml | 200 | 89522366139ce4ef35471f08877c46c89cf9ba19cfbd80eac2727b6f39cc1d45 |
| https://www.mcmahonconstruction.ie/category-sitemap.xml | 200 | a4a76db7780c9b11ce06ad17e6bb09de8e182e21f86f972075d70fa42d6377c8 |
| https://www.mcmahonconstruction.ie/author-sitemap.xml | 200 | bc169290b9adced73153d9d5dc32c8ece620b3b731146dd953497d5d6cefb1f3 |
| https://www.mcmahonconstruction.ie/attachment-sitemap.xml | 200 | c9607894e711d5c160ca568a6b83f298a4eb7a111393f040413870b44e99b927 |
| https://www.mcmahonconstruction.ie/about-us/ | 200 | 048cef54103f03b11b0c7261459c6ff85c9faf70ce27133c7a91721fa4177538 |
| https://www.mcmahonconstruction.ie/portfolio/ | 200 | d4b1410ed5709209b7d6c7c1a988078e12a54ce9e7fbe439e98cc51cda70c12a |
| https://www.mcmahonconstruction.ie/our-values/ | 200 | de56c2fd757293ba05083beb6b9340c12e79880c6101406f926fb36aa7f4a280 |
| https://www.mcmahonconstruction.ie/air-tightness-and-insulation/ | 200 | d8fb5b7953fbb7170ec4368e570e3a38d57d41e8ce8fe8bd13b0cdf09e014fba |
| https://www.mcmahonconstruction.ie/services/ | 200 | fca4c42db01f0f53d563dc285f4a7fdb129792718fb75b1693ba9eb6f83b576f |
| https://www.mcmahonconstruction.ie/photo-gallery/ | 200 | a182af9a20386d92e8f503787c89b0ecb7830b717fae342f6a40a010c5b89942 |
| https://www.mcmahonconstruction.ie/photo-gallery/commercial/ | 200 | 74c98d0f0f239cfb326baa9f077833046d8a451a1fe77343136a777046bb0724 |
| https://www.mcmahonconstruction.ie/hello-world/ | 200 | e47e79938c698bc1c39c9b16efedba2a12daefd7b934c6331436076c52b68908 |
| https://www.mcmahonconstruction.ie/category/uncategorised/ | 200 | 6841853fff634c7fa1c1aaf9ab0f2ac58458bbf78c873bb240aa465b6812119c |
| https://www.mcmahonconstruction.ie/author/mccadmin/ | 200 | b0010e5e64f58fc18389c1627a77d19855d421afa02cf316f2209540537dc3bb |