# Double Diamond Services

**Trade:** Pool Cleaning · **Phone:** (774) 392-3603 · **Website:** https://www.doublediamondservice.com/ · **Languages:** English

**Rating: 4.2/5** (low confidence) — from 5 reviews across 4 sources.
100% of sentiment-scored reviews read net-positive. Last 6 months: 2 reviews, 0 negative.

## The honest read

Double Diamond Services is an Osterville, Massachusetts pool contractor serving Cape Cod and Martha’s Vineyard. Its website says the company has more than 25 years of experience and offers pool installation, remodeling, underwater services, vinyl liners, saunas and hot tubs, and maintenance. HomeAdvisor also lists custom pool builds and swimming pool maintenance, while customer reviews refer to the team as David’s pool-service business.

The available customer history is small but consistently positive: five Google reviews from July 2022 through July 2026, with two in the last six months. Customers describe weekly summer maintenance, sparkling pools, help correcting bromine levels, pump replacement, equipment work after lightning damage, and cement repair. They repeatedly mention technicians arriving as scheduled, courteous staff, and dependable pool care.

One 2022 reviewer said an initial pump-replacement quote from another source was three times higher than reasonable estimates, then praised Double Diamond’s reasonable quote and prompt response; that is a comparison reported by the reviewer, not an independently verified price benchmark. Before booking, confirm the scope and price of any equipment replacement or repair, the warranty terms, and the timing for larger pool projects. The business appears best suited to homeowners seeking recurring pool maintenance or pool construction and renovation, with a modest but detailed recent review record to discuss directly.

**Strengths:**
- Reliable scheduling — reviewers cite on-time arrivals
- Pool maintenance — recurring service leaves pools sparkling
- Equipment expertise — reviews describe pump and equipment work

**Concerns:**
- Equipment pricing — one 2022 review compared a prior quote as excessive

**Where sources disagree:**
- The website says more than 25 years of experience, while HomeAdvisor states 26 years.

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- The company is based in Osterville and serves Cape Cod and Martha’s Vineyard. _(confidence: high)_
  - [Official Website](https://www.doublediamondservice.com) — “Double Diamond Services is an Osterville, Massachusetts pool contractor offering pool installation, remodeling, underwater services, vinyl l…”
- The website self-reports more than 25 years of experience. _(confidence: high)_
  - [Official Website](https://www.doublediamondservice.com) — “Self-reported 25 years in business”
- Pool installation, remodeling, underwater services, vinyl liners, saunas, hot tubs, and maintenance are offered. _(confidence: high)_
  - [Official Website](https://www.doublediamondservice.com) — “Double Diamond Services is an Osterville, Massachusetts pool contractor offering pool installation, remodeling, underwater services, vinyl l…”
- Reviewers praise dependable scheduling and courteous pool technicians. _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2s1MFRVTlhRMkozYkZneFNHaFhUbTh0Y1Y5aU1tYxAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CAIQACodChtycF9oOk50TUNXQ2J3bFgxSGhXTm8tcV9iMmc%7C%7C?hl=en) — “5★ Outstanding service! Cheri is especially helpful with everything from scheduling to personally caring for our plunge pool. We greatly app…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT201NWNGQjNlV0pxUmxGRFQwOUtkRk41ZUhReU5tYxAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CAIQACodChtycF9oOm55cFB3eWJqRlFDT09KdFN5eHQyNmc%7C%7C?hl=en) — “5★ Love these guys! Always on time and they do a great job.”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUM5OXUyb2p3RRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgIC99u2ojwE%7C%7C?hl=en) — “5★ David and his team are amazing. The office staff and the onsite pool technicians are courteous, helpful, know everything there is to know…”
- Reviews describe recurring maintenance, equipment replacement, water chemistry correction, and cement repair. _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUM5OXUyb2p3RRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgIC99u2ojwE%7C%7C?hl=en) — “5★ David and his team are amazing. The office staff and the onsite pool technicians are courteous, helpful, know everything there is to know…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNKbTdPU2t3RRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgICJm7OSkwE%7C%7C?hl=en) — “5★ Had major issue at my businesses pool with bromine levels and various other things. The keyword is had. Thanks to David and his fabulous …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUN1a2FmVGxRRRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgICukafTlQE%7C%7C?hl=en) — “5★ We had an issue with our pump running really loudly and when I asked for a consultation and was told the pump needed to be replaced, the …”
- One 2022 reviewer reported receiving an initially excessive pump-replacement quote elsewhere before finding Double Diamond. _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUN1a2FmVGxRRRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgICukafTlQE%7C%7C?hl=en) — “5★ We had an issue with our pump running really loudly and when I asked for a consultation and was told the pump needed to be replaced, the …”
- Five detailed Google reviews are positive, with two dated within the last six months. _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2s1MFRVTlhRMkozYkZneFNHaFhUbTh0Y1Y5aU1tYxAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CAIQACodChtycF9oOk50TUNXQ2J3bFgxSGhXTm8tcV9iMmc%7C%7C?hl=en) — “5★ Outstanding service! Cheri is especially helpful with everything from scheduling to personally caring for our plunge pool. We greatly app…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT201NWNGQjNlV0pxUmxGRFQwOUtkRk41ZUhReU5tYxAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CAIQACodChtycF9oOm55cFB3eWJqRlFDT09KdFN5eHQyNmc%7C%7C?hl=en) — “5★ Love these guys! Always on time and they do a great job.”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUM5OXUyb2p3RRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgIC99u2ojwE%7C%7C?hl=en) — “5★ David and his team are amazing. The office staff and the onsite pool technicians are courteous, helpful, know everything there is to know…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNKbTdPU2t3RRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgICJm7OSkwE%7C%7C?hl=en) — “5★ Had major issue at my businesses pool with bromine levels and various other things. The keyword is had. Thanks to David and his fabulous …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUN1a2FmVGxRRRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgICukafTlQE%7C%7C?hl=en) — “5★ We had an issue with our pump running really loudly and when I asked for a consultation and was told the pump needed to be replaced, the …”
- Specializes in Pool Cleaning _(confidence: high)_
  - [Official Website](https://www.doublediamondservice.com) — “Double Diamond Services is an Osterville, Massachusetts pool contractor offering pool installation, remodeling, underwater services, vinyl l…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUM5OXUyb2p3RRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgIC99u2ojwE%7C%7C?hl=en) — “5★ David and his team are amazing. The office staff and the onsite pool technicians are courteous, helpful, know everything there is to know…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNKbTdPU2t3RRAB!2m1!1s0x0:0xb45b57bdb5370cb3!3m1!1s2@1:CIHM0ogKEICAgICJm7OSkwE%7C%7C?hl=en) — “5★ Had major issue at my businesses pool with bromine levels and various other things. The keyword is had. Thanks to David and his fabulous …”

## License

Status: **not_found** — verified against the official MA state registry, never self-reported.
Re-check at the official registry: https://contractorhub.mass.gov/s/hic-contractor-search

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=Double%20Diamond%20Services&query_place_id=ChIJSXpF5S6jh4MRsww3tb1XW7Q): 5.0★ from 6 ratings
- [Google](https://www.google.com/maps/search/?api=1&query=Double%20Diamond%20Services&query_place_id=ChIJSXpF5S6jh4MRsww3tb1XW7Q): Listed on this source
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Double%20Diamond%20Services&query_place_id=ChIJSXpF5S6jh4MRsww3tb1XW7Q): Listed on this source
- [Official Website](https://www.doublediamondservice.com): 25 yrs in business · Self-reported profile and service details
- [HomeAdvisor](https://www.homeadvisor.com/rated.PoolInstallationandPool.126455174.html): Listed on this source

## Recent reviews

- **5/5 · Google Reviews · Chris Bond · 2026-07-13**: Outstanding service! Cheri is especially helpful with everything from scheduling to personally caring for our plunge pool. We greatly appreciate her and the entire Double Diamond team!
- **5/5 · Google Reviews · iRev Apparel · 2026-04-20**: Love these guys! Always on time and they do a great job.
- **5/5 · Google Reviews · Kathryn Contarino · 2024-03-05**: David and his team are amazing. The office staff and the onsite pool technicians are courteous, helpful, know everything there is to know about pools (very important for a pool newbie such as myself) and always show up when they say they are going to. They leave the pool sparkling every time. We use…
- **5/5 · Google Reviews · Branham Foley · 2023-07-05**: Had major issue at my businesses pool with bromine levels and various other things. The keyword is had. Thanks to David and his fabulous work My pool is back within correct levels and operating smoother than it ever has as far as equipment as well. I would highly recommend David for any of your pool…
- **5/5 · Google Reviews · Cheri Scott · 2022-07-30**: We had an issue with our pump running really loudly and when I asked for a consultation and was told the pump needed to be replaced, the quotes were three times what any reasonable place was estimating. This might be inflation based on where we live but even so it was ridiculous. After asking for mu…

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Data freshness: last scanned 2026-08-24T05:08:53.682Z.
Cite as: Double Diamond Services — Tavlee (https://tavlee.com/contractor/double-diamond-services)
Source: https://tavlee.com/contractor/double-diamond-services