Thomas J. Fannon & Sons
Alexandria, VA Furnace Replacement · #4 of 3 · 140+ yrs
ⓘVouched Score is calculated from publicly available signals: Google rating & review count, Yelp rating, BBB grade, review sentiment, years in business, local search ranking, and provider website content. Not a guarantee of service quality.Embed this score
⏱ 140+ years in business
Review sentiment: 62/100
At a glance
- Google rating
- 4.1★ from 70+ reviews
- In business
- 140+ years
- Services
- 2 Furnace Replacement services
- Service area
- Alexandria, VA + 1 nearby
- Phone
- +1-703-549-5700
Overview
Furnace replacement and full-system changeouts are listed as a company specialization. Family-owned operation with 140+ years in Alexandria. Website notes free estimates for prospective replacement projects. Local knowledge fits Alexandria's older homes and mixed fuel systems. Same-day emergency response is advertised for urgent heating needs.
Furnace and full-system replacement for Alexandria homes, including furnace+AC changeouts. Family-owned operation with 140+ years serving the area. Free estimates are offered per their website. Same-day emergency response is listed.
Score breakdown
Alexandria, VA Furnace Replacement average is 88/100. Ranks #4 of 3 listed Furnace Replacement providers in Alexandria, VA.
Editorial Review
52
46%
Google Rating
70
17%
Local Search Rank
25
9%
Review Sentiment
62
15%
Years in Business
100
4%
Review Volume
50
9%
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
vs. Alexandria average
| Signal | Thomas J. Fannon & Sons | Alexandria avg | Delta |
|---|---|---|---|
| Vouched Score | 56/100 | 88/100 | -32 vs avg |
| Google rating | 4.1★ | 4.8★ | -0.7 vs avg |
| Review volume | 70+ | 8,345+ | -8276 vs avg |
| Years in business | 140+ | 55+ | +85 vs avg |
Pros & cons
Pros
Strengths
- Long-established (140+ years in business)
Cons
- Mixed customer sentiment (score 62/100)
When to choose them
- You need same-day or after-hours service
- You prefer a family-owned operation
- You value a long-tenured local operator (140+ years in business)
Consider alternatives if
- You want a BBB-rated firm specifically
Services
Service area
Contact & hours
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✉️
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Call for hours
Frequently asked questions
What are the pros of Thomas J. Fannon & Sons?
Based on public records and customer reviews: Long-established (140+ years in business); Emergency response: same-day; Free estimates.
What are the cons of Thomas J. Fannon & Sons?
Concerns flagged from public records and reviews: Mixed customer sentiment (score 62/100).
When should I choose Thomas J. Fannon & Sons?
Choose them if: You need same-day or after-hours service; You prefer a family-owned operation; You value a long-tenured local operator (140+ years in business).
What is the Vouched Score for Thomas J. Fannon & Sons?
56/100. Top contributing signals: Years In Business 100/100, Google Rating 70/100+ Review Sentiment 62/100. The score blends public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment.
How long has Thomas J. Fannon & Sons been in business?
Thomas J. Fannon & Sons has been operating for 140+ years in Alexandria, VA.
How can I contact Thomas J. Fannon & Sons?
Call Thomas J. Fannon & Sons at +1-703-549-5700. Address: 1200 Duke St, Alexandria, VA 22314, USA.
What does furnace replacement service typically cost when working with a Alexandria, VA provider like Thomas J. Fannon & Sons?
Full gas furnace replacement typically runs $3,200–$6,950, and high-efficiency condensing furnace runs $4,800–$10,150 in Alexandria, Virginia. These are area-wide market estimates, not Thomas J. Fannon & Sons's quotes. For an exact price, request a written estimate from Thomas J. Fannon & Sons.
What pricing terms does Thomas J. Fannon & Sons publish on their website?
Thomas J. Fannon & Sons's website publishes: Free estimates. Promotions and plans change — confirm currently-available terms with Thomas J. Fannon & Sons before acting.
Does Thomas J. Fannon & Sons do Furnace Replacement in Alexandria, VA?
Yes. Thomas J. Fannon & Sons lists Furnace Replacement among its services and serves Alexandria, VA and Replacement Alexandria, VA. Call +1-703-549-5700 for a quote.
Does Thomas J. Fannon & Sons do Emergency HVAC Service in Alexandria, VA?
Yes. Thomas J. Fannon & Sons lists Emergency HVAC Service among its services and serves Alexandria, VA and Replacement Alexandria, VA. Call +1-703-549-5700 for a quote.
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Thomas J. Fannon & Sons (this company) |
56/100 | 4.1★ (70+) | 140+ |
Krafft Service Corporation ⭐ Highest Vouched Score · ⭐ Best for Proper Sizing · ⭐ Best for High-Efficiency (95%+ AFUE) Upgrades |
91/100 | 4.9★ (1,740+) | 86+ |
| 85/100 | 4.7★ (7,380+) | 30+ | |
Michael & Son Services ⭐ Best NATE-Certified Installer |
87/100 | 4.7★ (15,915+) | 50+ |
Listed in
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Profile last updated July 20, 2026.